Turns out, the twit has already had a trip to A&E!
An hour after we'd left, he was chopping onion with one of his new very sharp chef's knives, whilst chatting to flatmates. Next thing you know, we'll, apparently he's now nicknamed Red Onion!
The knife sliced cleanly through his finger nail, and finger, causing rather a lot of bleeding. It took over three hours to stem the blood loss sufficiently to dress the wound properly.
Fortunately, it sounds like his flatmates are pretty sensible and rushed to his aid, and went with him to hospital.
That incident, along with cutting his nail rather too short, could well have cut his dental career short too.