Huh, that's kind of an interesting behavior! Never seen that in my snakes either! Sounds like he was just playing with the mouse lol. I wonder if anyone else has ever observed that type of "caudal luring" in a BP. I know most tree pythons will use some form of caudal luring. With GTPs most of their tails are a different color from the rest of their body so that they can use it expressly for that purpose.