Mastodawn

Or maybe introduce them to Little Bobby Tables

(skeletor is leading by example by adding that unnecessary apostrophe…)

Can you add a “TAB” into a password?

Of course. In Windows you can hold Alt and type 0 0 9 before releasing the Alt key.

Similar with other control characters, although NULL might be harder to type yet more likely to break things.

SHY is good if you’d like a character which can’t be seen without using unicode’s hidden characters.