You can get a booking for the most innocuous of things: kicking the ball away; taking your shirt off; mock booking the referee (quite a meta one, that) - but we think this latest yellow card may be the strangest that we've ever seen.
It happened in a recent game in the UAE Pro League, when Al Nasr striker Ibrahima Toure, awaiting a corner, decided to kill a few seconds by practicing his handstands.
Not the most usual thing to see on a football pitch, but also not exactly an incendiary act; yet it seemed to seriously annoy players from the opposing side Al Sharjah, who went over to him to remonstrate, believing he were disrespecting them. The referee then issued a yellow card.
Imagine if he'd done a cartwheel, it would have been instant red and a 10-match ban.
Watch the bizarre incident below.