Thanks to all who entered our 13th Caption Contest. Now it's up to you all to pick the winner, after the jump you'll find our favorites.
Drop your vote in the comments below and may the best caption win! (Remember: one vote per person please.)

click cartoon to enlarge

And the finalists are"¦

a) Big wheel keep on turning, Proud Mary keep on burning,

b) "Pardon me, Madam, but I'm having some trouble with my timecycle. Does that outlet happen to be 1.21 Gigawatts?"

c) "Pardon Me....Do you have any Grey Poupon"

d) "Well, well...I say, do you plug in here often? Fancy a ride on a real machine?"

e) Arthur glanced back at her and pitied her obvious need to make a social statement.

f) For weeks afterwards, Mary would be haunted by a single question: Where DOES one find mustache wax in this day and age?

g) "VOLT GUZZLER!"

h) "My dear madame, I resent the insinuation that I am "˜overcompensating'"¦ at least IT does not need to be PLUGGED IN to work!"

i) "Damn European plugs!"

j) Belinda had hoped that switching to an electric car would stop the ghost of her notoriously "green" great grandfather from haunting her. But so far, he was acting as sanctimonious as usual.