I'm a player that enjoys pinball. I don't aggressively nudge, slide or beat on games (my own or anyone elses). I'm especially respectful of other pinhead's games. If I drain 3 balls... I simply hit the "start game" button.
I own quite a few games (25+). I've put on many pin parties / events. I really enjoy sharing my collection with friends, scouts and soccer teams (6 years as coach). However, I'm not happy with people who abuse my games. I've had people shake them so hard its gouged / wrinkled my new cabinet decals
On party events; I've placed small signs on lock down bar "Please enjoy my games / don't Shake them". I also tighten up the legs bolts and tilt bobs... it only takes one hard / aggressive nudge / shake to do damage. I had a guy shake my White Water *so hard* it wrinkled all 4 legs. I just completed the restoration just 2 weeks prior.