I went to school with a guy named Bill. Bill had a unique personality trait. He needed attention so badly (I think he came from a broken home) that he would do and say stupid things, that everybody around him knew were nonsensical, had no value and made Bill look really stupid, but if Bill was ever aware of how he looked to other people, he never gave any indication of it. He just kept saying and doing things like that until he disappeared from our lives one day. He showed up at our 20 year reunion, even though he never graduated with us, and he was still the same. He came in a tux, while the rest of use were in jeans and boots, he said he was an "international banker" but offered no specifics regarding where he lived or anything about himself other than he was super successful and had a ring on every finger ... and he still did the same quirky things ... all for the apparent attention it got him. Bill was harmless and rather pitifully moved from group to group in an effort to fit in during the reunion. I felt sorry for him at first, until I made the mistake of trying to be nice to him. I then had to suffer his presence
I have noticed as I have grown older that if you get more than a few people together, you can often come across a guy like Bill in the group ... no matter where you are or the age of the crowd.