So last night I was at a party and got bored so I decided to do burnouts. I did like a 20 second brake stand, and afterwards the clutch wouldn't disengage. I coulnt get into any gears with the car running. I parked the car and went inside to drink more. Decided to worry about it in the morning. Today I went to get it and was starting it in gear to try and pull the car up the trailer with the starter. Something popped, and then the clutch started working again. I drove it to the shop and inspected it. Only thing I found was the clutch line was damp. I recently had installed ss lines. I cleaned up the fitting, ut on some teflon tape, and bled the clutch. Seams fine now. Weird...

 

if the clutch line was weak, or leaking as you stated, it could be short on the pressure to help it disengage....