Ken, my friend, you are funnier than a Mesopotamiam bull fighter!
Many years ago I helped out by playing double bass in a combined secondary schools youth orchestra - I was teaching somewhere or other and they were short of basses. We performed in the Michael Fowler Centre, which is where the symphony orchestra plays in Wellington - a posh venue! Ken, you won't believe this, sitting behind the basses was a kid with a bass guitar, amp et al, playing along.
I guess he ignored the 'arco' instructions on his part.