There's a good reason this YouTube video has 25,000,000 views and counting.
It features a BMW S1000RR camera bike chasing his mate on a Honda CBR1000RR Fireblade. The 'blade rider is in jeans and a pair of trainers, but to be honest, the speeds they're riding at even proper leathers would struggle to save them in the event of an off. It's silly, childish, selfish riding. And it makes for one crazy five minutes of footage.