Guitarist - a nice guy and a pretty decent player, but...
He suffers from the usual guitard volume control issues. He has 2 amps, one for lead and one for rhythm (as you do), with an extra extension cab thrown in for good measure... it is quite the 'wall of sound' at times.
He also has a pedal board the size of a small principality. Invariably, as part of his low grade river dance performance, he will hit the wrong pedal, usually during some critical point in a quieter song, creating the sound of a flock seagulls being macerated by a combine harvester.
The sheer number of pedals (20 +, I tried counting them all but got bored) also results in frequent patch lead/power failures, again leading to new and exciting 'sound textures' in unexpected places.
At rehearsals, he frequently launches into an unnecessary solo performance of some dubious cover version (Phil bloody Collins anyone?) between our tunes, and seems to find this highly amusing. We are an all originals band. No one else is laughing much.
Like I said, generally a nice guy, but hard work at times...