its part of the game... and of course linked to how TILT is set-up... but for sure, no prob here !
few ago, the owner of a machine in a tournament held my son (after his game) because he was ungry he have "slide" it (while perfectly saving the ball)
i talk with the guy (ok he's a friend), he stay on his position (than not happy), i stay on mine (than well done son) ...
and of course, we did this with our own pinballs too, absolutly no agression againts the machines here