But one fellow student changed the course of my life. Steven Shalita was an arrogant guy who fancied himself as an undercover cop—his car was covered with radio antennas. He liked to show off the tricks he could do with the telephone, and he could do some amazing things. He demonstrated how he could have people call him without revealing his real phone number by using a phone company test circuit called a "loop-around"; he would call in on one of the loop’s phone numbers while the other person was calling the loop’s second phone number. The two callers would be magically connected. He could get the name and address assigned to any phone number, listed or not, by calling the phone company’s Customer Name and Address (CNA) Bureau. With a single call, he got my mom’s unlisted phone number. Wow! He could get the phone number and address of anyone, even a movie star with an unlisted number. It seemed like the folks at the phone company were just standing by to see what they could do to help him.