Stashed in: Reaction GIFs!, Photobomb!, Facepalm
Joe Rogan does the facepalm, too!
Gorillas re-enact the scene:
Also useful for unwanted Photobombers:
Thank you, alcohol. ~April Ludgate gif HD
Cue the Song and Dance JonTron gif
Arthur Payne and now it begins lightsaber gif
The League Child Please gif