Just watching the FINA / NVC Diving World Series at London's Aquatics Centre wasn't enough for one man: he wanted to join in.
Cue a race up the stairs with clothes flying, a security man in hot pursuit, and an undignified flop off the board in his swimming trunks.
The intruder was prankster Dan Jarvis from the Troll Station group, who also invaded the pitch at Tottenham Hotspur's ground last year.