[jasonkostempski]

Many years ago, before I ever used Linux in any serious fashion, I often used a password that ended with '!!'. One day I was playing around with setting up MySQL and was having a very hard time with something that seemed super simple. I don't remember exactly how I figured it out, I think I accidentally type my password at the wrong time in the command line and observed some odd behavior and, after hours, finally tracked it to the '!!' command. I decided to try a different root password for MySQL and it was smooth sailing from there. A few months later I was transferring a domain away from a small DNS hosting provider. After a week or so of waiting support told me they were having a hard time with my account and couldn't do what they needed to do to initiate the transfer. I don't have the support emails, must have been my old hotmail account, but something they said suggested they might be trying to run commands on my account with my password (I knew they stored it in plain text since it was in several emails from them and I knew they were Linux servers) and it reminded me about the '!!' issue I had with MySQL. I changed my password and they were able to move forward. I wish I had dug deeper into the issues at the time they occurred.