Here at the travel network I just implemented a popup to ask if you want to sign up for discount membership. It was meant to be a marketing test to see if people wanted to buy travel memberships. I'm just following orders - I expressed the liklihood of failure and said an offer badge on the purchase confirmation page would be much more polite. But what do I know - I just write code. I'm not in "the business" group.
The test has been a huge failure - nobody wants to sign up - now they wonder why so I've been tasked with tracking who turned down the offer so we can follow up with dead tree spam.
Clueless.