Couple of years ago i was blasting along the broadwater Sandbank channel (near seaworld)where everyone gets a good flatwater run. A boat (3 meter tinnie with 4 hp on the back) pulls up on the sandbank and 3 blokes started casting rods across the channel in front of windsurfing and kitesurfing folk
I told them they might want to move before they get an ear full of abuse but by then they snagged a fellow windsurfer as i was leaving. It got a bit ugly after it but the the boat was seen leaving a few minutes later!