A certain skipper in Newquay has a missing big toe due to catching one on a fishing line and landing it on the boat. They generally don't bother people too much and are curious but keep out of the way. We had one swimming with us last year around this wreck off Portland
YouTube - Unknown Coaster Wreck off Portland, Dorset - Scuba Dive
YouTube - Unknown Coaster Wreck off Portland, Dorset - Scuba Dive