Here's a recording of Coco as he passed by the bar on his way back to
the stage after using the restroom during the drum solo on the last
number of the second set:
 

http://www.blueguitar.org/new/misc/humor/coco_talks.mp3
 

Transcript:

Coco singing to himself as he approachs: "It's my life and I'll do what you say..."
 
Bartender: "Would you like something to go?"
 
Coco: "No, I'm doing fine... I've got some water here and I just went to the bathroom."
 
[drums getting louder- conversation inaudible]
 
Coco: "Well maybe, I might have forgotten SOMETHING..."
 
Bartender: "Did you wash your hands?"