I've got a good story for this one...
Buddy brings over his 94 Camaro to do front pads and rotors... easy peasy.
So we get down to removing the rotors and damn do they look rusty... so I started beating on them and beating on them, until I had cracked off big chunks of them all the way around and they still wouldn't come off... So we took off the knuckles and brought them to a shop and he put them on a press... long story short the wheel bearing ended up getting ruined and a 30 minute brake job turned into pads, rotors, wheel bearing, ball joints, and $50 in shop fees and the car was down for 3 days.