hand's part of the ball

[oc]

B1, in an attempt to play the ball, slaps at A1's hand while A1's hand is on the ball (dribbling or holding the ball).

situation 1: ball goes oob.

situation 2: A1 loses control of the ball and team B picks it up.


In situation 1: I got A's ball oob on B.

in situation 2: I got a no call.

Am I right? Friend of mine made a good point that my interpretation on these 2 situations isn't really consistent-although I still think I am probably right because in situation 1 it would be very difficult for B1 to have contacted all hand without touching a little of the ball.

situation 3: A1 attempts to rebound the ball and gets one hand on it. B1 pushes A1's hand and ball goes oob. It is obvious B1 never touched the ball-only A1's hand. Whose ball?