This video is not for the faint of heart. I just saw this clip up on Vital and it’s pretty disturbing. This past Friday in Porto Alegre, Brazil, there was a terrible attack on an otherwise peaceful Critical Mass ride. During the ride, a crazed driver literally drove right through the crowd. Riders piled up on the car’s hood before being thrown to the pavement. Surprisingly, no one was killed but eight people were taken to the hospital.