If you insist on freaking your dog out by blowing a vuvuzela in its face, then ensure you have a carpet cleaner and some air freshener to hand.
Anyone who has watched any of the matches at the 2010 World Cup in South Africa will no doubt be aware of a constant noise in the background. That noise is thousands of people blowing vuvuzelas.
Most humans find the sound of vuvuzelas annoying, which has led to many complaints and a desire to see them banned. But it appears dogs dislike these cheap, brightly-colored instruments as well.
This particular dog dislikes it so much that he takes a leak on the carper when his owners wind him up with one. Which serves them right. In fact, I wish it had taken a dump at the same time to really get the message across.