Summer is descending, and with summer comes flies.
No one is spared them - leave the doors or windows open at home, and they are in your kitchen.
Have a picnic, and they come too.
And if you are in the food preparation business, summer is a nightmare of keeping flies at bay.
Here are two examples of where the flies got through: a takeaway pizza with a nice big fly in the topping, and a frozen chicken, on which a fly seems to have alighted before the freezing took place.
Last night it was Samuel Keenan's turn to cook dinner - roast chicken. But when he opened the packaging of his Tegel chicken, he found something else had got to it first.
"I started to open it up and that's when I first noticed these little specks like maggots," says Mr Keenan. "As I ripped the chicken further open, I found a large cluster of them."
Mr Keenan had bought the frozen chicken from Richmond Pak'n'Save in Nelson on Saturday.
Yesterday morning he put it in the fridge to thaw and be ready to cook in the evening.
When he found what he thought were maggots on the chicken, he rang Tegel straight away.
"They didn't really seem overly concerned that I'd found them," he says. "They seemed more concerned about getting it back and replacing it with another chicken."
But are they maggots?
Campbell Live took the chicken to an independent laboratory in Nelson and found out they were not maggots – yet.
"Newly hatched fly eggs which have not yet developed inside the egg," says Rod Asher, entomologist for the Cawthron Institute.
Mr Asher says the eggs on the chicken could have come from just one female fly, and it would have only taken minutes to lay hundreds of eggs.
"As summer arrives, then this sort of thing will happen more frequently in all sorts of situations. There's even some blowflies that can eject their eggs while still flying above the surface they consider good for their larvae," he says.
Tegel chicken has replied to Campbell Live with a written statement.
"Tegel's processing facilities have strict control measures designed to deliver the highest world class standards of food hygiene. These measures are continually audited by the NZFSA to ensure compliance. Even with these measures in place, it is impossible to absolutely eliminate all risks. We take customer complaints very seriously and a full investigation will be undertaken."
Tegel did offer Mr Keenan a refund for the chicken and $100 voucher, but he says he is not interested in the money.
"I'd like to see some procedure so this can't happen again," he says. "It ruined my night and I just don't want to see it ruin anybody else's."
It may have ruined Mr Keenan's night and appetite, but apparently the fly eggs would not have made him sick.
"The eggs wouldn't of harmed anybody in their present state," says Mr Asher. "The eggs would have been killed by freezing."
From frozen fly eggs to a whole fly, in all its glory, bang in a pizza topping.
We all know takeaway pizzas come with a variety of extras, but a fly is not one many of us would opt for, and certainly not the Christchurch family who got it.
It was meant to be a special treat for the family's dinner - a large takeaway 'hot and spicy' pizza from Pizza Hut.
And as the family settled in to watch Campbell Live, Glenn Colenso noticed one extra topping which he definitely had not paid for - a well-cooked big black blowfly.
"He was laying back/belly up, just towards the crust melted into the cheese, so he obviously landed for a bit of a meal and didn't realise he was going to be part of it," says Mr Colenso.
"I got pretty close to it, got quite a big mouth...I looked at it, then turned it on an angle and saw the legs, and last time I checked pizza don't have legs."
Mr Colenso showed it to his family, who were not impressed either.
"My initial reaction was to just leave it but I thought I better contact them and let them know."
The manager of Northwoods Pizza Hut in Christchurch, where Mr Colenso bought the pizza, rang him straight back.
"He just called up and apologised, and said that he'd send another pizza out, and I told him that I'd prefer to just leave it and maybe send us a voucher, and when I felt strong enough to stomach another pizza, I'd go and get one," says Mr Colenso. "But (there was a) bit of a language barrier, and he said 'see you in 30 minutes' and 30 minutes later a new hot and spicy pizza arrived and it sat on the bench."
So he now has two-and-a-half cold pizzas, one with extra protein, but he is still not happy.
"They make enough pizzas, they know flies shouldn't be there. It's not their fault that the fly fell in there, and obviously landed in the pizza, but just the quality control to check it. Check it before it goes out the door to my mouth and my kid's mouth."
The family say they won't be ordering anything else from Pizza Hut, and Mr Colenso has some advice to consumers.
"Don't get so engrossed in Campbell Live or whatever you're watching on TV and watch what you're eating 'cause you don't know what's on it."
And even if you are hungry, there is only one place for a pizza with a fly topping to go - and that is in the bin.
Of course, flies turn up everywhere, and sometimes it is not just flies.
There are scientists whose job it is to work out how the fly, or mouse, or in one case, dog jaw, really ended up in a particular product.
Darren Saunders is a food scientist and technical manager with ESR. He has seen it all - some of it entirely revolting.
But how do they know when it got in?
Campbell Live speaks to Mr Saunders to find out just how they work it out.