This doesn't stop at 20 yr olds. My daughter is in her 40s and for reasons too long to get into stayed with us for a year. She wanted to help show the horses and immediately (after a few lessons and one show) began telling me and other people (which was the really embarassing part) just how to do things.Don't flame me with this one,
But, my biggest pet peeve is the early 20 year olds who think they know just about everything. After all they are now adults and fresh out of shcool. Their little bit of book knowledge seems to make them feel they do not have to learn anything more, as they know it all........
My pet peeve however is people who bring dogs (and children) to shows and let them run unsupervised without leashes.