Yeah, these people tend to really get under my skin as well. Especially since the majority of them are younger than me. Experience doesn't always equal attitude though.

At my school we have an instructor that has more instruction given/flight hours in a C-152 than any other known person (25,000+ as of a couple of years ago in the 152 and 30,000+ TT). He's been instructed since the seventies and is probably the most humble pilot around the campus. Whenever the local news station came by to do a story on him all the other instructors and pilots sung his praise about his flying abilities and when questioned about it he just kind of smiled and said "Aw shucks... They didn't say that, I'm not as good as they try to make me out to be.". The man has probably forgotten more about aviation than I could ever hope to learn and yet is humble in his teaching and his mannerisms, and then you get these people that literally have a fraction of a percent of his experience and they think that they are God's gift to aviation.