We've heard of "taking out the competition," but former astronaunt Lisa Nowack took the phrase just a little too literally. When she discovered co-astronaut Bill Oefelein was dating another woman, she went after his new lady armed with a bag full of tricks, specifically a knife, a BB gun, a steel mallet, some rubber tubing, and a can of mace.

Nowack ambushed lady-rival Colleen Shipman at the Orlando International Airport, planning to kidnap and kill her. Luckily for Shipman, she only got the mace and managed to avoid the other instruments of torture by way of a swift escape. Lowack may have been an astronaut, but this crazy move proves she was no rocket scientist when it came to love.