My male Redguard was at the Bee and Barb, he was in a hurry and running for the door... But a girl was blocking his way, and she just stood there without moving. So I kept pushing her, and she said: "Why can't the men in this city leave me alone?!"
Guess why! Get out of my way, idiot!
Another one (similar, but different) was when I should demonstrate the whirlwind sprint. Lydia had decided to place herself right in front of me. So I bumped into her, Arngeir called "Come, Dragonborn! Attend to master Borri!" I ran in a circle to get Lydia behind me, then she did of course block my way again, the procedure repeated itself three or four times while Arngeir tried to make me "attend to master Borri". He must have thought I was an extremely unfocused student.
Now I always tell my follower to wait inside High Hrothgar.