1. Windows domains as user@domain
2. Starting tape backups at 13:37, realizing they need about 5 hours and all company servers run on ~5% speed for others
3. Repeatedly opening and closing devRant multiple times a minute realizing it has been open currently
4. accidentally executing "apt-get update && apt-get update"
5. Trying every earlier password if the current windows domain password timeouted until I come to an not yet used one.