That's exactly why giving a player control over who tp's to them and when would be so useful. Why should he have to log off when someone else is being a jerk? It would be far better if he could prevent this disruptive behavior then have to interrupt his own game play by logging off to get away from this guy. Especially when the guy might start pulling the same nonsense when he logs back in.

I propose this statement popping up: So and so is in battle--you can't teleport to them. I have friends who let me warp to them while they're away--a nice feature, nothing I want to limit. I'd just tell a guy to buzz off if he gnats like a gnatty gnat.

im all for it.