The Unix-HATERS Handbook [pdf]

In truth though this book seems to be a satire, and a comment about things to try to avoid doing in a Unix based operating system and crazy things Users have done, and the pitfalls/gotchas Users have found themselves in.

just like you should never type `rm ` in a directory. The same could be said for dos don't type `del ` same behavior.

it's a pretty good read, and kind of comical in 2017.