Coping With 1 Million SSH Authentication Failures?
That's a beautiful and witty analogy but to reverse it:
If he asked "How can I stop my house being burgled?" and you said, "Without a full alarm, CCTV and patrol system, don't even bother. Leave it to the professionals."
Some others might see some practical value in suggesting, "Maybe lock your door at night."
My opinion in this situation is first to take what advice you can and do something yourself as soon as possible (since any extra security is better than nothing). Next, as you suggested and when he has the resources to employ someone to do it properly, seek professional help. Simply doing nothing until he can do it properly sounds a bit dangerous.
Anti-Spam Suits and Booby-Trapped Motions
In Wisconsin, only one party of the conversation needs to know in order for it to be legal. So, if I tape you talking to someone else--illegal. If you call me and I tape you w/o you knowing--legal.