I sympathise totally with Guest, Chris Lamb - no - you should never be forced into doing what you don't feel necessary by audience pressure - I always remember Billy Connolly's stopping one of his audiences foot stamping by asking them if they were "trying out your new wellies?
One of the worst examples, to my mind, of the unnecessary repeating of a verse is when it happens in, 'Will ye Go Tae Flanders' a beautifully succinctly tragic children's song which says it all in two verses - until somebody goes and ruins it by repeating the first verse - what an anti-climax.
Jim Carroll