How to elegantly exit a broken SSH connection in your shell

If you happen to always create a new shell and close the broken one, you must like this.

> in the case where you have a bad connection and the shell is unresponsive, hit the Enter key, then type ~. and ssh should immediately close and return you to your command prompt.

From [this answer](https://superuser.com/a/1251011). Very good to know.