A man fought off a shark and survived by eating bamboo for 20 hours after falling off a cruise ship.
James Michael Grimes has no clue how he ended up in the sea but insists he wasn't drunk despite celebrating winning an air guitar competition on the vessel.
The 28-year-old says he treaded water and ate bamboo after he plunged into the water while on a Thanksgiving cruise with 18 members of his family last month.
