A few days ago we had a nice clip where blue 30 and yellow 9 go down in a rebounding situation.
This really is a difficult situation. Both players are running towards play, and to us it looks like they are knowingly finding eachother. Both players are going down with a serious level of theatrical gestures.
As both players are bumping the other we’d go for a double foul. The way they are going down shows a desire to make the impression the other guy fouled him. That’s not the behaviour we want to support. Therefor : call the double foul. If you decide for a no call it shows you and your teammate(s) accept this behaviour and that’s a signal you want to avoid.