It had been a long couple of weeks. Vader's office was pink, the dance had been excruciating, and the Emperor was not at all pleased about his lack of progress on the Skywalker front.
So Vader was going for a walk to burn off tension.
This being Vader, it looked a lot like "stalking through the park and scaring the squirrels."
[OOC: Vader's here for
notstakedyet, not that he knows that, but feel free to use the park for other squirrel-terrifying needs.]