well, Amos, I have judged 'maturity' for many years by the time a person quits calling riddles 'jokes'.

Some of those lines are cute, and a few are darned clever....but with the WWW it is hard to avoid reading the same ones 40 times.

If you pick the right phrase, a Google search will get you page after page of stuff like this that is merely copy & paste, with NO credit to the original compiler.