OOB and player's hair

[ysong]

Originally posted by JugglingReferee

#2: A1 is holding the ball and looking for a pass, B1 sneaks up and bats A1's hand and sends the ball OOB. Let's say B1 did not touch the ball at all, so A1 is the last one touched the ball, do give the ball to B team for throw in?

2. A's ball.

It may make sense to give to ball to A1 (if B1 does not touch the ball), but is that the opposite of what the rule says? because after all, A1 is the last one who touched the ball.