Guest John Stafford: I found a reference to a member of the Dragon Folk Club in Worcester having sung Unpleasant and Frightful back in 2015 (they keep a blog detailing what's been sung). The singer was called Colin and there's certainly a Colin currently there - I imagine it's the same one. Maybe he'll be able to recall the lyrics for you:

Dragon Blog

The reference to U & F is just past half way down the page.

Good luck in your search!

LFF