Make him trip and fall (hard is best because then they won't brother you again).

I JUST RUN AND IF HE STARTS RUNNING I SPRINT, SOCIAL GRACES BE DAMNED

sometimes but more often, I'm stuck behind meanderers at the airport

at 6'3" with pretty long stride. I usually can overtake someone on a pass pretty quick, without looking like a speed walker on crack.

I remember being 7 years old.