Allegedly, more people use Facebook than e-mail, and during the last several months, Twitter became a verb. But for Corporate America, that could cause some problems, according to Houston attorney Chris Schaeper. "Twenty years ago, you might be having beers with an old frat buddy from college and have a conversation you probably shouldn't have, but who's going to find out?" Schaeper tells Hair Balls. "With Twitter, now there's a track record. It's out there forever."The problem lies in all those