On a last-minute ticket a few weeks ago, I was almost denied checking in at MKE becauseI didn't have my credit card. Yeah, I pulled a DYKWIA and finally got my BP, but it wasn't pretty.

I asked the agent about "master" credit cards, and he said the same thing applies.

Really stupid.

Oh, and of course I got the "It's done for your protection". I told him it was not necessary to protect me.