Firstly, I am glad you didn't get hurt, I am glad you didn't hurt someone else with the broken glass. It may not be noticed by others but as long as you see it the fact that you did it an didn;t tell anyone, well thta is the equivilent of a lie, and it will most likely eat away at you because you are the only one that knows.

Tell someone, tell a T of yours, set yourself free, be the bigger man and own up to your mistake. It is a picture for crying out loud. It is not that big of a deal.

If you have that kind of anger you need to be talking to your T about it anyway. That is my advice to you, even though I have a notion you were not seeking advice. You were making a statement.

I wish you the best where you are, and hope things are working out for the good for ya.