I suppose there IS a difference between a good prank, and vandalism.

I once knew a guy who had, in a previous life, illustrated comic books. Every now and then, for reasons unknown, her would arise in the middle of the night, slink off to some remote building, and chalk out amazing re-creations of Superman, Spiderman, etc.- to the shocked delight of the residents the next morning!

I also once lived in a place that was said to be the fastest growing place in the USA at the time. The town fathers, looking into their crystal ball, foresaw an industrial park in the future of one road-side wheat field. So, planning ahead, they errected a pair of huge water tanks.
Now, as it happend, a friend's dad worked part time for the village, and had keys to the fence. In no time at all, the tankes were labled -in large, neat letters- "hot" and "cold." To this day, rumor persists that thie industrial park has city-provided hot water! [Linked Image]