Actually, I read something about najos the other day (banjos I mean, I dont know how that happened) ... lemme go look it up ...
It was the ever brilliant Simon Hoggart
Thanks for many letters and emails about orchestral jokes. Apparently in the world of fretted instruments, the banjo plays the role of the despised viola. Several readers sent in something along these lines: "A banjo player is eating lunch in a diner when he remembers he's left his new $2,000 banjo on the seat of his car. He dashes to the parking lot, but too late! Someone has broken in and left two more banjos on the back seat."
Followed up later by:
Thanks for all those musician jokes. In dance bands it is, apparently, the trombonist who is butt of all the jokes (many are viola jokes, or banjo jokes, rewritten.) "What's the difference between a trombone and a trampoline? You have to take your boots off before you jump on a trampoline." In rock bands, it's the drummer. "What do you call a guy who hangs out with musicians? A drummer."
Hmm ... well, just cause I'm a drumming trombonist and banjo player, doesnt mean nobody will want to dance with me ... does it ? (echo)