Quoted from spfxted:
I do not nudge and ask people to nudge their own machines. My house, my rules. When I play at your house I go by your rules.
Also, some people don't want drinks on, or by their machines. I'm one of them.
I fully agree with your right to uphold your rules of your machines. However, not allowing people to nudge a pinball machine at all is like not allowing checking in Hockey. My suggestion is to make the tilt sensitive enough to tilt an egregious nudge.