I do this at the office. When we get donuts, I always have two.  Even if there's only like 12, I'll still eat two, because 10 out of 10 people in my office are fat.  Okay not really, but out of 150 employees, under 10 are skinny or fit.  Not exaggerating.  And those other skinny/fit people don't eat shit food during the week. The fatties at work are jealous of my "freakish metabolism"...no sorry, that's the gym that keeps me from blowing up, thanks.