Just for s**** and giggles, sometimes I'll pick up and say hello... I'll say hello a few times, as the person either asks for me or DH by name. Then I say "Fabric store! You want fabric?" or else I'll say "Pizza. You want pizza?" This ends in a hang up and hopefully my number taken off that particular list.
Other times, when they ask for DH by name (*HOW* to they get DH's last name, which is an unusual surname & different from mine?), I'll go into a spiel about "WHO is this? Is this Bobby???" Of course it's not "Bobby" but they think they're going to eventually get to DH, then I say "Oh, this is not Bobby? You want who?" and then I add "Nope! He moved!"
One time a guy called and I was not feeling the love. I started a conversation with him about how he knew my DH, and I named a high school in another state. Of course, the caller said, he remembered my DH from high school. Then I said "Class of -1995, yes?" and the caller agreed and started talking B.S. and saying he even remembered me as DH's main squeeze and how happy he was that we married. I ended up telling him DH and I were moving to Colorado or Wyoming.
If you have the time and inclination, try playing Fun with Callers --and it makes for some funny stories, sometimes, too. All in all, I'm glad we don't get too many of these kinds of calls.
Smiles,
Sooz