I’ve never been to the Leaning Tower of Pisa (wiki), but I have seen and heard of the many people that scatter in front of the tower to do the “OMG The Tower is Falling and I need to Hold it up” pose.
This group of guys decided they were going to high-five the tourists as they were waiting for “the pose”. He left many people with some good memories I bet, but warns “Be careful with tourists that climb on the chain fences and don’t anger dads.”