UFOs are my specialty after aviation
Did you hear about the Mexicana flight? I forgot the number (I'll find it). It was coming in on final when people from the surrounding area called the airport to report an unidentified flying object. The residents reported visual contact, and the object also appeared on radar at ATC. Then the pilot also reported seeing something. Apparently, the UFO "danced" around the aircaft and then shot sideways and hit the aircrafts fuselage. After the aircraft landed, inspections where made, and indeed, there was a dent, several feet in diameter, on the underside of the fuselage.
I'll find some more if you want.