Exactly :)

My mum had (probably still has) a habit of saying to my dad, if he was being rude: "You're rotten. And if rottens were a bob, you'd be a two-bob rotten".

I've now untangled this to mean that if the quality of being rotten-mean cost a shilling (a "bob"), my dad would have been the extra-rotten two-shilling edition. Unfortunately, since my dad is also called Bobb, this saying left me at sea for years.