From the sound of it, the skateboarding guy must have never watched Forrest Gump. He would have known it would take more than 2 weeks, just by seeing Gump's beard grow.
Nuhuh. that movie took only 2 hours and 22 minutes, and that walking sequence took up about 10~20 minutes, he just has really strong beard growth when he walks. If Forrest can do it in 20 minutes, I should be able to do it in 2 weeks! /jk