I've seen it done at banger racing on more than one occassion. Whatever the health risks, I bet they are only these recent cotton-wool, political correct, health risks; people do it, have no issues, but authorities will still scream about it not being safe.
If it's a case of that, or having an open cut, losing blood and risking further infection, it's a no brainer. But I must ask; when you are snowboarding, if you have superglue available, that means a) you take it with you, or b) you go to a pretty well equipped building after you fall. In either case, surely real first aid equipment would be readily available?