Double Trouble

"Last year I replaced all the windows in my house with those expensive
double-pane energy-efficient kind. Yesterday, I got a call from the
contractor who installed them. He was complaining that the windows had
been installed a year ago and I hadn't paid for them yet. Hellloooo? Now
just because I'm blonde doesn't mean that I am automatically stupid. So
I told him just exactly what his fast-talking sales guy had told ME last
year... Namely, that in just ONE YEAR these windows would pay for
themselves! Helllooooo? "It's been a year"! There was only silence at
the other end of the line, so I finally just hung up... He hasn't called
back, probably too embarrassed about forgetting the guarantee they made
me. Bet he won't underestimate a blonde anymore!"

This is the best joke I have heard in a while Jo, please post some more