"i plead the.....4th?!"
Don't let them jackbooted sumbitches in your house for any reason.
In fact, don't talk to police at all, ever.
Even if you are as clean as Snow White, never consent.
Be polite and comply with their lawful requests, but do not answer any questions. Coppers are schooled in the art of intimidation from day one at the Academy. Know your rights and never put yourself in a position where a copper could legally gather evidence against you.