If you're not stashing the crack, what's the big deal in allowing someone's dog sniff one's pocket?
If you're not cheating on your taxes, what's the big deal in allowing me to look at your tax returns?
If you have no contraband in your house, what's the big deal in allowing me to rifle through your closet?
If you have nothing illegal in your medical history, what't the big deal in allowing me to look at your medical records?
Very reasonable answer.
Say, while we are at it: If you aren't planning a crime, why are you sending mail in an envelope? Postcards would work just fine. If you aren't planning a terrorist act, what's the big deal with cops just coming over to your house and searching it without a warrant?
We're starting to get AWFULLY SUSPICIOUS of you Constitution-Loving Crazies.
They say that cocaine is so prolific that every paper bill in circulation has some on it. Have fun explaining that. You can tell them you heard it on the internet. ;^)