I handed my laptop over to my friend there a few days ago for about 10mins. Little did I know but he changed a thing or two on me. Seeing as I normally have a few full screen applications running at the same time, I barely even see my desktop these days and so it took me about a day to realise what he’d done. That combined with the fact I also very rarely shut down my MacBook either.
Anyway, my “friend” changed my wallpaper. I laughed then I proceeded in calling him a profanity or sorts. The T-shirt is funny though. 
Oh! Oh! Click to bring you to my flickr