When I was in my last year of school and attending a bunch of recruiting events there was one CEO from a mid-sized consultancy who impressed us all by taking a call from his wife in the middle of his presentation in front of couple hundred students. He'd get the whole group to say hi to her and then said he'd phone her back, hang up, and continue with his presentation. Gave a good sense for the work/life balance.

Of course, we then heard that every term he gives that recruiting talk and every time his wife calls right in the middle...

I kind of became enamoured with his evil genius ways.