Salien
Those crazy ladies that always show up at your garage sale. Symptoms include showing up before you "open", haggling over every. single. price. and insulting your taste in stuff.
Oh my God, this salien showed up to my garage sale 1/2 an hour before I 'opened', offered me $20 for my lawnmower , then argued with me for 10 minutes when I told her it wasn't for sale!