When I was in HS me and a group of friends got that list but it was much longer. Well all decided to skip school one day, well we got bored and took that list and headed downtown. We were going to do the elevator ones. It was funny enough with the looks we were getting, a bunch of biz people then a group of "thugs". We got thrown out of a few bulidings. We did the one where you draw a box but we drew a box one inch from the walls. People would get in and we would yell Our Space. We also played Marry had a little lamb with the buttons with a full elevator that ticked a few people off.
I did more than my share of stupid things in my teenage years but that had to be one of the funniest things ever. The last buliding we went into they called the cops, we were arrested for skipping school and causing a distrubance. They took us all back to school and then we were suspended. Makes sence right? LOL