Jus' joking... ;-))
That's easy. Someone used to snitch my sandwiches, so I made him/her a real special one.
If it's at home, geez, you might have to put locks on your fridge!
You slap their hands and say "NO!"
if they're stealin food they're hungry.......leave em a plate
Please give more details, is this in your home, from your plate, your ice box or from a store?