If anyone feels they have to "lift" their game off the floor to stop a drain ball etc.. They don't deserve to own a machine.

However, there is nothing wrong with giving the machine a good shove every now and again.. Just to let it know "who owns who"..

You can't damage anything internal. You would probably do more damage to your wrist or fist..

Anyone who knows me, and therefore knows how much time and effort i've put into every machine i own knows better than to be "too agressive" with my machines! A little bit of shoving/nudging is fine, but anyone who starts shaking/kicking my machines around too hard so as they are being knocked against the game beside it(they are packed in fairly tight in my garage), will be warned, then smacked in the side of the head if they dont listen..lol