Sorry to have disappointed you Martin, here's some more of what happened with my GF:
Prior to the removal of her wisdom teeth, one of them got infected in the gap between the wisdom and her freaky extra tooth deep in her jaw which we didn't know existed at the time. Went round for the evening to find her sitting there wimpering, with a huge fever and the side of her face swelled up and looking like Meg Griffin. Call to dentist said to come in the next day. Over the course of the evening the swelling increased and started spreading down her neck, again dentist says its ok as long as she can breath.
She wakes me up at 3:30am saying "the swelling's pressing on my windpipe now": hmm, quick drive to A&E ensues. They keep her waiting for 4 hours in severe pain until the docs come in at 8am, on the basis that she can still breathe okish despite massive pain.
Doc eventually sees her and says he can't drain the huge accumulation of pus in her face and neck as if he lances it the pus will inevitably lead to infection and nasty scarring around the wound. And they can't take the tooth out while it's infected and swollen around it. So he prescribes massive antibiotics, painkillers, and hot saltwater mouthwash. So we get her home and dosed up, and the mouthwash opens up some kind of escape channel for the pus, with the result that she spends the next few days spitting out mouthfuls of foul tasting/smelling gunk.
Dodgy dentists? The one she saw for the pre-op consultation said "should be no trouble to get the teeth out as you have a massive mouth/jaw for a woman": did not go down well.