Taking the number one spot is the US man who was so frustrated with his laptop, he shot it in a fit of e-rage, then realised there were important files he needed.
Hot on his heels is the company director whose soapy bath time ended in disaster when his laptop slipped in with him.
I once became so infuriated with my computer, during a Windows 2000 install, that I promptly threw my keyboard against my wall. Besides rendering both USB ports useless, I also managed to break my keyboard in half, not to mention the nice hole in my wall.