Oh evil creamer snatcher, I will catch you

I buy those flavored creamers, it's my thing. I brought a new one to work Monday after writing my name all over it, several times, with black sharpie marker. This morning I went to get some, and there was maybe an inch and a half of creamer in the container. This, IMO is frickin rude. My name was on the container and no one asked me. It should have been left alone. So........... tomorrow, in order to prove a point, I'm going to pour out the remainder creamer into another container, and put milk and salt in it, or leave the creamer and squirt some visine in it. The visine seems a little malicious, but how awesome would it be to see the culprit run out of the building with explosive diarrhea?