When you realize you are, in fact, short
I was 6'2" at 14 and grew another inch by 18.
I went to HS with a guy that was 6'7". He had to time his step perfectly not to hit the top bar of a 6'8" doorway.
Today I worked with a young lady that was 5'1". We got some comments from people in the hallway.
My wife is 5'3".