No, its in case club owners "lose" our contract and try to say we agreed to a lesser sum of money. It also beats carrying a pipebomb, since I can legally conceal it.
Did you see the DVD of standing in the shadows of Motown? There was an incident where a club owner laid a gun on the bar and said he wasn't going to pay them because of the tab the drummer ran up. Jamerson laid his gun on the bar and said I got to feed my family. Then the other guys laid their guns on the bar and the club owner changed his mind! I loved it!!