Ah, Lee - I call those thoughts "digs" - or at least they are when you actually say them. The urge is almost irresistible sometimes - good for you for keeping that thought to yourself. I think it comes out of the tremendous need to have them acknowledge how they've hurt us - and maybe a little bit of desire to hurt them back? Don't worry, it goes away with time!
What kind of concert? I've been researching little portable multitrack digital recorders for my daughter the songwriter - amazing what you can get for $300 these days!
