I'm not a fan of Derbys either but Brocius was a bad man. "Dibs".
In Tombstone, Powers Boothe made a great Curly Bill. That was a good casting.
Didn't Hardin shoot a guy through a hotel room ceiling once for snoring? I've had the urge a couple of times for that very reason. But being 'civerlized' and all I refrained and it didn't happen.