Yeah, it happens quite frequently. In fact, there was one in the OP. The personal foul by A2 and the technical foul by any member of Team A for complaining after this foul constitute a false multiple foul since the clock had not yet started again following the first foul.
I actually meant to say "anyone ever called a multiple foul", I had "false" on the brain from the prior posts...
I have actually been in the gym and witnessed multiple foul called. I posted about it on this forum about four years ago. Someone can probably find it with the search function.