its really annoying when people do this. i've had two experiences where someone has slapped the ball away from me while i was busking. sadly enough the people who did it to me were old enough that they should have known better unlike these little kids. i don't understand why people fuck with you when you are trying to entertain people or even if you are doing it to make a little money, but i guess it happens to all of us if happens to the great abdullah as well.