There was a really stupid video recently where a guy put the original DVD and packaging materials of Windows Vista into a shredder. It was supposed to be funny, but it clearly wasn't. Even his dialogs which he thought were really humourous sounded absolutely corny to me.
The first video about these guys smashing the Mac is even more stupid than that. A guy smashing a Mac with a sledgehammer for five minutes. Pathetic! If someone finds it funny, then he has a really sad sense of humour. The second one is brilliantly done though. Yes, he makes fun of Macs but he does it in a way that is funny. It makes you laugh irrespective of whether you like Macs or not.