It was a promotion.
Buy one abscess, get one filling free.

If you'd bought three, you might have got a root canal too.
(WANKERTRON you say "prick", I say "wanker", Thu 18 Jun 2009, 15:45, archived)

dammit
why did no one explain these offers to me at the time?
(BloodthirstyTurtle can no longer smell the blood of any englishmen, Thu 18 Jun 2009, 15:50, archived)