Watch House episodes in random order, take the virus of the week and translate it to magical terms, then pit Harry against it.

I'd suggest other medical shows, but House stands out as being more of a medical mystery show compared to the more common hospital drama shows, even if House is going that way these days.

 

Tehan, you is awesome! It probably wouldn't be that interesting without Harry's House-like personality... Hm, so much to think about HP/House Crossover

 

Cut of the penis, the blood loss will kill you in a minute or so but it's not fatal if you just put some bandage over it or something.

You get the added bonus of insane pain and a majorly hurt ego.

 

A single stab to the chest can puncture the pleural wall and let in air, which would cause a tension pneumothorax or hemopneumothorax. Untreated it'll kill within a few minutes or faster.

They can be nasty to treat too, since the chest tubes often get clotted with the blood - causing another pneumothorax, conveniently.