I'm not sure how it can get stranger. I've had guys come up to the urinal next to me still talking into their ear pieces. It's incredibly rude, bizarre behavior. Their conversation is taking place in an entirely different context, and I think that's where their minds usually are too. So they might not think anything of it when they approach from behind saying something like, "We need to take care of this right now" too loud and too close to your ear.