Here is my analysis: Him looking around was coincidence. Those glass doors had just been cleaned and he didn’t notice they were even there. Suddenly he noticed his bus was pulling up at the stop outside and across the street so he legged it full throttle. He doesn’t seem to really brace for impact as he just sets off running full speed and his head meets the opposing force full on. He would have definately flinched if he knew it was coming. Maybe he has just been silly tho. What do you think?