Telemarketers and pollsters calling during dinner because that's when you're most likely to be home. I don't answer the phone when I'm having dinner.
I always fill out radio stations' surveys. I'm hopelessly optimistic that they'll start playing better music. I have noticed that since I started regularly doing on station's survey and putting "MORE SOUL AND MOTOWN!!" in the comments box that they are playing more soul and motown.
Maybe lots of other people felt the same way as me!