Well my rottie. Bronx, has developed this habit of banging his face on the floor at shadows, I blame the few times way back in the day when he saw a lazer on the floor. Its really something to see, he just hunches over and puts his muzzle facing the floor and pounces, on his face, thankfully no damage has occured, but its quite annoying seeing this 2 yr old rotti bang his face of the floor. I have not let anyone show him a lazer in atleast 1 1/2yrs, and yet he still insist on head banging the floor. Crazy dog. any suggestions? I have one, Don't show your rotti a lazer, who knows what mental disorder they will develope. lol.