Sometimes invisible curbs are the hardest curbs to see. I wonder why that is May 26, 2010 People vs. an invisible curb. Link http://www.collegehumor.com/out2/13287/url/gorillamask.net/index.php[q]show_page=video[amp]page_id=30839 Share Tumblr Facebook Twitter Reddit Stumble Upon Email × Share with friend Your Name Your Email Friends' Emails (Separate multiple addresses with commas) Send See More Ouch Pranks oops invisible Recommended Comments () HotlinkHollow Man would be proud HotlinkThe Very Best Trampoline Fails HotlinkSee? That's why you shouldn't run. Ever. HotlinkThat's why I play soccer with a face mask HotlinkWow, that's so weird. I wonder why that happens HotlinkHalftime Sledding Fail Comments ()