I was playing at this whole in the wall room one time. Playing a guy for 10 a rack or so. The walls of the room were cinder block. my opponent breaks, the CB flies off the table, bounces off the wall comes back on the table, and is back in play. we stand around for a minute in confusion on how to deal with this, then one of his buddies blurt out "balls in play, no foul ". WE continue the game and I end up winning through a two rail safe. But I can't help but wonder if that was a foul. some feed back plz.