I would have done the same thing when TVIX popped $12 in a day. Hahaha about the kind folks at Sharebuilder. Kind of reminds me of my Choicetrade debacle when I first started trading options with my account. :-D
So you just get a nastygram? I thought they would show up at my house and take the mouse from my computer! Is that where the margin account comes in handy?