We've all had this, usually at work, when someone is talking at you and it's like a machine gun, wherever you move, they're tracking you and continue to point it at you.

You make all of the movements, facial expressions and noises to make it obvious you want it to stop, but it doesn't.

Maybe, if you'd had this mug before that started, the attacker would notice and point it somewhere else before it started.  Then you'd be safe.

Just a suggestion, but it might save your life, or at least a particle of sanity.