My work colleagues believe just about everything i eat is weird, but it's mainly because i never heat anything up. If i bring food / leftovers from home (like lasagne or pasta or chilli or whatever) i just eat it cold, and they constantly express their disgust at that.
The other thing is that i keep a wee jar of peanut butter and a supply of plastic spoons in my desk drawer, and if i get peckish during the day, i take out the jar and eat a couple of spoonfuls. The looks i get!!

But hey... it's a good source of protein, and it's quick and easy... and it tastes nice!