Here in the Netherlands, with any costs that you declare to your health insurance, you have to check a box on the declaration form that says "Was this the result of an accident which may be somebody else's fault?"
Presumably, it would be the health insurance company (who tend to have in-house lawyers) trying to get some of their money back who'd sue, possibly. Well obviously, not for a few stitches. But for something require long-term treatment, they might if there was negligience.

And as far as I know, most countries don't allow contracts which go against certain (vital) parts of the law, they just declare them unbinding from the beginning. Otherwise, you could just enter into a contract that says you're somebody else's slave or something!

Ickiest injury I've seen - someone just standing against the boards for a few minutes just suddenly went down. Her feet got tangled and she got herself a good slice in the shin with the tail of her blade. She didn't feel it and bled a fair bit onto the ice before she realized she was hurt.

I think this is pretty common, I've got several healing nicks and scrapes around my legs from falls that were otherwise completely harmless, except for those knives stuck to my flailing feet.

Worst I've had myself - I went flying off my toepick on a forward spiral. I landed well, distributing the fall from hands to forearms to chest so nothing hit too hard except my free leg went out of control and into the ice knee first. That was seriously painful, but didn't break anything.

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It's all about the dress!

Yep, same here. Doing a Jenkins spiral, caught a toepick, jammed the heel of the blade of the free leg into the thigh of my skating leg.

The Big Guy says the most dangerous move in figure skating is standing on the ice listening to someone tell you something funny. You laugh, you fall.

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Great forum quotes:
On Falling: '...it doesn't matter, it's what you do AFTER you fall that's more important' ISK8NYC

One of my group lesson students took a spill during a class on new, sharp skates. She said she "scratched" her leg, so I helped her into a hockey box and pulled up her pant leg. I think I turned green when I saw that her shin was sliced to the bone. I had someone cover the class and carried her off the ice to get first aid. Fortunately, it wasn't bleeding yet. Her mother was a nurse, but she was panic-stricken by the sight of that gash - it had to be 4" long. After the ER and stitches, the kid never came back to skating.

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I've seen several serious injuries on the ice. I just want to add that if your gut tells you to call an ambulance, you call an ambulance - even if the person on the ice tells you not to. Call. Let the injured party refuse medical treatment once the ambulance arrives.

Because 9 times out of 10, the injured person wants you not to call the ambulance. 8 times out of 10, maybe they're right, and they don't need it. But that 1 time...