I had something a bit like that. Some friends and I were on a school trip to San Francisco, and we were out behind the hotel at like midnight smoking. So right as my friend is hitting it, the security guard comes around the corner and says "What are you guys doing back here?" There were four of us there, and me and another kid were on the far side from the security guard, so we backed up into the shadows then ran. The one who had the piece just threw it into the bushes, says "We were smoking cigarettes!" Then he and the other one run. The security guard told our teacher he caught us smoking cigs, and our teacher was really cool and didn't even tell our parents. My friend went and got his piece the next day.