What should one do after having a motorcycle crash?

Just like with any accident you should assess the situation after an accident. If you are in danger of being hit again, move out of the way. You should gather the information of the other person in the accident, if it was a single accident and no one else was involved you should stay on the scene and phone the cops. If you are injured or the other person is injured call an ambulance. You absolutely do not want to ever leave the scene of the crime!