I was going WB on 11th Ave, stopped at the light. Just as it turned green, a rollerblader came burning up the west sidewalk of SB 11 st, heading north, and figured he could beat all the traffic, cross the road, and jump up on the curb safely. He was going so fast, that he indeed beat the traffic, but he did not get up on the curb safely. A no parking sign took care of that. See my illustration:
Please click image for full blown awesome.