I still mess around all the time. I don't play for a living so it's not critical that I'm at my best at all times but I still feel some pressure to play well. That being said, I have days where I just play to have fun and keep my lip up. Like today I didn't care about all that stuff we work on day after day. I put on some Music Minus One and played a couple of concertos just for the fun of playing them. Maybe that's a break for me. Tomorrow I'll work some and then I have to perform.