Wendy: But I also found a second contributer in the grout sample, it was an unknown male.
Ray: They were probably my epithelials. I had to palpate the grout, you can't do that with gloves on.
Wendy: Well, in that case I just need a sample of your DNA and I will exclude you.
Ray: My DNA? Which would go into a database.
Wendy: Your fingerprints are already in AFIS, what's the difference?
Ray: There's a big difference. You're gonna have to put in your report that I said no.