No video but had a boxer dog who loved the burros...and burros hate dogs. But this boxer would climb up the fence and begin licking the burro's face repeatedly...the burro would get pissed and try and bite the dog but the dog was oblivious and continued to just lick all over the burros mouth and eyes and face...finally the burro just galloped off, braying his face off.
Boxers are natural clowns. I have one that races into the kitchen daily, loses traction on the tile floor and slams into the cabinets.
Daily. Like the other 87 times weren't enough...