A film of a man being attacked by a crab has gone viral on video-sharing websites. The clip shows the man, wearing a Russian soldiers cap, following a group of crabs as they walk alongside the curb of a rural road. The man catches one of the crabs and holds it up to his face - presumably forgetting what a crab has pincers for. The crab clips onto the mans nostril, making him scream out in pain, but that doesnt stop the crab. It continues to clamp down as the mans nose starts to turn white from the pressure. Though the first minute of the clip is the pursuit, the action comes in the last 15 seconds. OCU