I had a game the other night, and the guys ran into a few hellstinger scorpions. One of them grabbed the assassin, and when it was his turn he teleported out of the grab.
The scorpion has an attack power, "Reactive Sting", which allows it to use it's sting attack against an enemy as an immediate interrupt, the trigger being when the target escapes its grab. I saw that the Escape action in the handbook is a move action itself, so I made the call that the scorpion did not get it's reactive sting due to the fact that he escaped with a teleport (he teleported out of it's reach of course).
So I'm just curious, did I make the right call on that?