I think this gif is funny because the guy in the white shirt is running from a cow and the camera guy and the horse are just chilling and minding their own business. 

I can relate to this meme because it demonstrates the feeling of failing at something with someone who will support you anyway and you will support them back.

Video is really funny to me because its something i would do. Instead of just laying in bed and not fighting back he gets up, grabs a guitar and wacks the ghost in the head.