. >> with all the companies you bought, maybe the one that brought you the most trouble was salamon. when you bought it, at one point in bankruptcy and you had to go run the company. was that the most difficult experience in berkshire hathaway? >> i would say it was. there ceo five months, four days. it was 20 years ago and i think i remember every day of it. >> today when you have all these managers running 75 different companies, do they call you every day say i got this problem or that problem? how often do you talk to them? >> if they need to call me, they're in trouble. we buy businesses where the managers come with them, and there are some managers that i don't talk to want year and there's one i talk to almost every day, but -- after the one that i talk to almost every day, the next most, highest frequency, maybe once a week. they always call me. i don't call them. >> now, when want to make an investment, you have a board of directors. do you ever ask them, i've heard that you will buy a railroad for 30-some billion and not tell your board of directors? >> i told a few of them