I would like to nominate the observation ( I and another identifier made the ID) in iNaturalist which has a video link as well: You know that the Mule Deer “know” they are on (trail cam) camera - to the point of playful chasing - seems to be showing off; and in one segment - the stotting behavior - and a turn-around to show off some more. Awesome!
https://www.inaturalist.org/observations/335267426