The irony here is that we are on a bowhunting site yet no one suggested popping him with an arrow. Thats how I usually get them and I live in the country, more fun that way.
Rub a honey bun all over your brother in law as he sleeps, rent free, in your home. That should attract his freeloading brethren in the form of a racoon.
Call the Wildman, he'll catch it bare handed. http://animal.discovery.com/videos/call-of-the-wildman-raccoon-urine-cologne.html