I'm not sure if this question is appropriate for this SE, but I don't think there's one for laws and stuff.
Recently, I've been noticing someone has been stealing food from my office desk drawers. I could understand if it's on top of my desk, but the food is in my desk drawers! Meaning it's not open for the public!
Anyway, I left a note in my drawing to basically not eat it... please. This note has been ignored and my stuff keeps getting stolen. This is ridiculous! I have no idea who is doing this. It could be one of my co-workers or maybe the cleaning staff, I don't know.
If I were to put laxatives or something to my food, am I legally in trouble if the culprit gets poisoned?