I wouldn’t dare defile Douglas Adam’s memory by not mentioning that you should keep a towel with you at all times, but my second contender is a surprisingly short three-parter:
- never lie.
- never tell the whole truth.
- never pass up a chance to use a real bathroom.
Never talk to the police. They are not there to help you.
Anything you say WILL be used against you… It’s hidden right there in the Miranda Rights
Never call the police unless you are expecting someone to die.