This made me laugh so hard I almost started crying in class:

io9.com has an article on "worst sci-fi con artists." It's standard gawker fare (i.e. almost, but not quite, worth reading), but it does have this gem, talking about Captain Jack Harkness' first appearance in Dr. Who, which involves time travel, aliens, WWII, and a space ambulance:

He has some way-too-complicated plan to send a space ambulance back in time to World War II, and pretend it's a war ship. And then sell it to the Doctor, but explode it before he realizes it's actually just an ambulance. Between the incredibly overcomplicated plan and getting side-tracked by trying to seduce his marks, Jack dances himself all the way out of his hustle. He should probably just stay out of sales altogether: I can picture him trying to sell you a time share, but sending it back in time to the middle ages and pretending it's actually a hot-air balloon. And then staring at your pants for an hour.

I smile every time I read those last two sentences.

K