Hi,
I had the pleasure of being called at 1 AM (I live in Vietnam) by a Ameritrade rep: The conversation went more or less like this...

"Do you now what time it is? "
"Yes sir we do, it is now 1AM in Hanoi"
"Then why the ..."
"well we were wondering if you really intended to buy $200,000 worth of penny stocks on margin..."
"gulp.."

Probably checked my account on a public computer that had a key logger installed.
Glad they intercepted the trade. All trades were annnulled (and I had a net profit of 10,000 by then...sigh)

Ton