When he worked in 'World Of Curtains' many years ago in Wetwang*, Rockaay used to strut about the showrooms when he didn't think anyone was looking, wearing the curtains like a toga with very little on underneath.
Unfortunately, one day, he went to use the Paternoster** and his curtain got caught, ripping it from his body.
The young family waiting at the top have never quite been the same since (as have Rockaay's employment prospects).
* - Also where TVC was born, but thankfully at a different time!
** - Challenge for the day: Try and include the word 'Paternoster' in a normal every day conversation.