My behaviour whilst playing pins in public was commented on recently on another group.
I do tend to get a bit vocal when things don't go right, I try to keep the volume and the severity of the cursing down in public though, in case anybody nearby gets offended, especially in the arcades with youngsters around.
Depending on if I think the drain was my ineptitude, or just bad luck, i'll either curse myself or the machine in question. I'll sometimes open my arms wide and swing them back whilst leaning & stepping back, or else give the machine a good hard shove if I think it's to blame, especially a modern Stern.
I have ended up knocking into people at times when stepping back from the machine.