There is no need for a class.
Its real easy...
Don't drink 24-7, don't go off with strangers, make sure your friends are really your friends, and that your family members give a damn.
....and if you happen to neglect to follow one or more of "your" tips, then what? It is that person's fault if someone decides to make them "disappear" and no one has the right to question or find out what has become of them?
I don't think so.