Was his information at least accurate? I find a lot of times with the know-it-all types, they don't actually know what they are talking about and are just trying to sound like they do. Like, a friend of mine who was telling me all about World War I....you know...the one with the Nazis. And when I told her it was World War II that had the holocaust and the Nazis, she said no, it was the first one...her dad was a history teacher, so she should know. And another friend of mine informed me that Wyoming doesn't have any national parks, and I said yes we do, we have Yellowstone, and he told me that was in California. No....that's Yosemite.I've had this happen a few times. The worst was at The American Adventure. The dad felt the need to teach his son everything he knew about American history, and talked all the way through the attraction: "When George Washington was voted at our first president, blah de blah de blah . . ." and "Chief Joseph went on to become gibber-jabber-gibber. . ." It was really annoying! I gave him the stink-eye a couple times, but he just stared back at me and then continued with the lesson.
As annoying as it is to have someone doing a play by play, I'd be much more annoyed if the "facts" are wrong.