Oh, lessee....
Well I was once in serve-us in some tract campaign or orther and went to a door. I noticed that the handle on the screen door was a bit loose when I opened it to knock on the door. Sure enough, when there was no answer and I opend the screen door again to put the tract in the door, the handle came off in my hand. As I gently set it down and tried to walk off quietly, the lady comes to the door. She was pretty cool about it, though. Apparently it had been loose for a while.
On another occasion, I believe on some other campaign, I was in more rural territory. I pulled into something that looked like it might be a driveway. Suddenly, an old pickup with some menacing looking good ol' boys materalized from nowhere. They demanded to know what I was doing pulling in there. I explained and they curtly informed me that there were no houses there and I should turn around and leave. As they were a rather ruffian-esque bunch, I decided compliance would be in the best interest of my continued good health and took my leave. I suspect they probably had some "special crops" in the area.
I'm sure I'll think of more later.