I think they set up an information table in the ATL lounge a few years back (Wow, has it been that long) trying to get guys to fill out cards and they had a few boxes of doughnuts out for passersby.

I guess pizza gets you 2% but doughnuts gets you ridicule.

Disclaimer: I am not a DPA supporter, but without a healthy C2015, I can't guarantee that I'll be a DALPA supporter either.