Take a look at this fat guy getting pwned in his office by another guy sporting a mask. It's about as funny as they come!
So, I am thinking that the aftermath of this prank made for some pretty interesting talk around the water cooler the next day. I don't think that the fat guy from this viral video is going to live down this joke any time soon.
However, I have to say that I am not opposed to pranks like this one. If someone gets scared a little but nothing harmful or degrading is done to them, then I think it's all in good fun. I think though that pranks like inserting someone's toothbrush into your rectum and then having them brush their teeth with it or other similar disgusting jokes are a good way to make enemies in life.