Illegal Batting by B in B's end zone

[biglaz]

This play happened in one of my games today. I'm pretty sure of what the correct enforcement is now, but I think we screwed it up during the game

1/10 for A at the 50. A22 runs to the B5 where he fumbles. The ball rolls into B's end zone and almost comes to rest. B33 bats the ball out of the end zone to the B3 where B44 falls on the ball. Don't ask me why B33 batted the ball...lol