During a windstorm in June 2011, Guy Clarke stepped outside his property on Marco Island, Florida, and witnessed a crazy sight.

As he watched a catamaran broke loose from its mooring, traveled across the marina and crashed into his own cabin cruiser boat.

Uploading the video to YouTube, Clarke described the damage caused: “[The loose catamaran] ripped both engines and knocked holes into the boat.” Credit: Marco Bread Man via Storyful