Sultan Ahmed IV wrote:There is something called "Trust" pried

Here is a harder one:

A man in a crazy house wants to hang himself. There's a rope in the 20 feet tall room and it is hanging from the ceiling. But there is a problem. The rope is only 9 feet down. up. He is 6.5 feet tall. Now ten minutes later the guard walks in to release him. However, he finds that the man has hung himself. All he sees is a puddle of water, and a written note and a pencil. How did the crazy man hang himself?

(Pried you won't find this on Google )