A few years back, my brother and I had a job cooling down horses for the annual rodeo.
The day after the last performance, we went to collect our pay and ended up offering to help clean up.
While there, we struck up a conversation with the newly crowned rodeo queen.
There were leftover snacks in the concession stand and we received permission to get what we wanted.
The three of us were inside the stand leaning on the counter, talking, when I noticed the string that holds up the swinging panel/window hanging down in front of me.
I had a sno-cone cup in my hand and was collecting the hanging string in it, playing around, when it unraveled from its mooring and slipped loose.
The plywood panel swung down right into the girls face, breaking her nose and causing me to prematurely learn some very strong curse words.

(A sailor had nothing on her.)