The next time you go to hail a cab, watch out for this merry prankster.  Performing a stunt like this, he has to accept that some people will go for it, and some will get extremely violent.  Fortunately, he's on a bike.

When your day gets off to a bad start, you often say, "I got up on the wrong side of the bed." When a cyclist completely flubs the start of her time trial, what does she say? "I fell off on the wrong side of the ramp?"

We never went to summer camp. We used to think it was because our parents didn't love us. Seeing this makes us realize the exact opposite was true. The only logical explanation for sending your children to Bicycle Safety Camp:

Liza Minnelli recently played the part of the proverbial Mad Scientist's hamster, fated to run in place to power some crazy contraption. A few things were different, though: Minnelli sat on a bike and pedalled to store energy...

You could do like Mom says, "put down Guitar Hero and get some damn exercise." Or, if you're as resourceful as this kid, you can combine the two. Just be aware that getting hit by a car will rapidly drain your Star Power.

Do you win the race if your bike crosses the finish line without you? We guess the bike wanted it more than he did.

Come join us for another exciting edition of stupid stunts and tricks! Today's video highlights what not to do at a playground. These guys idiotically copy another well-known video featuring three girls being spun around...

We're sure that it can get a little lonely in the garage for a lot of inventors, but we never knew the line between inspiration and desperation was so thin. Watch this contestant on ABC's American Inventor get pumped up,...

Amazing trick! This kid takes advantage of his local playground in this gravity-defying clip.

Critical Mass rides are self-organized events where bicyclists take over traffic. They are protests against the domination of our car culture and its harmful affects on the environment. These Berkeley participants get...

Cool kids don’t follow the rules! Smosh, the most subscribed to channel of all time on You Tube, has created a jokey music video for their new song Hardcore Max. The video's title character Max, earns his street cred by not...