In one band I'm in we have two guitarists, one of whom seems incapable of staying in tune for two consecutive songs (so that's a 60-second tuning break inserted into every gap between songs, making the gaps longer), and the other takes five minutes to tune his guitar before each set with the volume on his combo turned up so that the whole pub can wince in unison.
I'm sure they know what they're doing, and we often get compliments on the way that we've built the tuning process into our performance.
OK, I made that last bit up.