I recall posting on another thread on session etiquette a couple of years ago, that somebody once tried to join in my rendition of, Duw, it's hard, with an accompaniment on bongos. It is rather hard to imagine a song and instrument worse suited to each other.

I silenced the accompaniment with a ferocious glare. After I finished, someone who had been listening but not watching, asked me why I put so much venom into the words, "... roll to rest amidst the dust ...".