Silly question,
of course, Dave!
As you can imagine, my favourite band even composed a song about it too!
Led Zep would write songs about stairways to heaven, Vikings and other silly stuff, my band advocated healthy, sensible everyday products and selflessly promoted the reduction of pubic lice in one of the former, more western colonies of the British Empire.
Obviously, group(ie) hygiene wasn't all it could have been in the 70ies. Or maybe they caught it all from Led Zep?