I'll start. When I was a teenager someone found half a dead cockroach and buried it in a plate of chips whilst I had gone to get a drink. I came back and started chatting to them and eating chips but not looking at my plate. I didn't eat the cockroach thankfully but actually had it in my hand and poised ready to eat it when I noticed the gleeful/horrified expression on their face, looked at what I had in my fingers and threw it on the floor whilst retching. I felt sick! (And threw my chips away because they had been contaminated) 