In a similar
way to the game of Safety
for farts, then Window Pane is called when a friend burps within earshot. You are then entitled to punch them
until they touch a window pane.
to protect oneself from being
punched, you can call Security or just say a simple "Excuse Me".
of Safety/Doorknob include Tent Zipper, and numerous others I can't think of right now that
are more appropriate to a particular situation.