I was watching my mixed doubles team play last night, and I saw players from both teams foot fault on almost every serve they made. It was only the guys, and not the girls in this case. Last week, when I finished my court in our men's league match, and was watching the other courts finish play, I saw a couple of other guys who foot fault all the time. I am amazed at how much foot faulting I see as a spectator, but I hardly ever notice it while on the court myself. After seeing the guys that foot fault, I was considering if I'd call them on foot faulting when I play a league match against them in the future. (i probably wouldn't) I've never done this in the past, but knowing who to look for, it could work in my favor to get them thrown-off by a foot fault warning. What do you think? Would you call a foot fault? Have you ever played in a match where one was called?