It’s common practice to use our smartphone on the go. Chances are we’re texting, updating a social media post, or responding to an email while being completely oblivious to what’s happening around us. Just ask teen Alexa Longeira, who fell down a manhole because she was responding to an text message. Longeria was just one of several people who have humiliated themselves by not paying attention while texting. However, she dodged a bullet as the incident was never caught on camera. Others weren't so lucky. If you're in the mood for some comic relief, we recommend watching the 13 funniest videos of people candidly captured on camera running into objects, falling down steps, or being caught off guard by so-called friends. We suggest you take heed.