I've never had a problem with it, but I also don't look at them while driving, and so forth. Maybe I'm the drunk driver who thinks he can totally drive better when he's drunk, but I've been driving 20+ years and never had an issue.
OTOH, I also evaluate and will not talk if I don't feel comfortable (poor road conditions, etc).
OTOH, I also evaluate and will not talk if I don't feel comfortable (poor road conditions, etc).