Last year I replaced all the windows in my house with those expensive, double-pane, energy-efficient kind. 

Today, I got a call from the contractor who installed them.  He complained that the work had been completed a year ago and I still hadn't paid for them. 

Helloooo ... just because I'm blonde doesn't mean that I am automatically stupid.

So, I told him just what his fast-talking sales guy told me last year... that these windows would pay for themselves in a year.

Helloooo  It's been a year, so they're paid for, I told him.  There was only silence at the other end of the line, so I finally hung up.

He never called back.  I bet he felt like an idiot.