I would have slapped him across the face... but then, well, that's me. I had no cleavage until about a year ago and then * poof * here we are! @ 33 years old no less! anyway... now that there is something to stare at I am SO defensive about it.

Personally I would be looking for a new T. IMO. Hell, even if he was staring at the floor instead I would consider it. I would find him staring off anywhere really annoying. Dunno. Guess I would feel like he wasn't paying attention.