Here are all the rules for getting out:
Double tap/hold - The biggest double tap is when somebody stops the ball then hits it. I also only allow them 3 hits to themselves off a wall because then its just boring for everybody else. Technically, a catch is a hold and most places play where you can catch the ball to get players out. I don't play that way, but add it if you want.
Hit in Target Zone - Belt and below in my "gym" (and if you ain't wearin' a belt, I hope ya drawers don't fall down). I also don't like them diving and laying on the ground, so in my classes, if they're touching the ground with anything but their feet, their entire body (face and hands included) becomes the target zone.
Out of Bounds - last to touch it when it goes out
Saying “you’re out” - Huge rule here, applicable every day, not just with subs. When you say "you're out," either they know they're out and you're rubbing it in or they don't know they're out and you aren't giving them any new information.