This is a Video of Darth Vader Being Foiled By An Overly-Playful Dog
Elsewhere on the internet
What did you think this was? You saw the title, right? Do we need to explain the appeal/fascination/likely entertainment contained therein? (To be fair, this Sith Lord isn’t so much getting “attacked” as “playfully gnawed on”.) Remember, they may be out to rule the galaxy, but meddlers in the Dark Side of the Force are not your chew toys.
Oh, get off our lawn already, and click “play”.