Yes, Big Tudor, there's miserable buggers in every walk of life, but sometimes you find on the opposire side of the coin, jocular people where you least expect it. I've met funeral directors who were real party starters, and even an executioner with a funny story for every occasion. I couldn't get away from him fast enough, he made my skin crawl. He could never work out why people didn't like him. (You meet some strange people in this business).
On the topic of quiet pilots, I once did a 2 hours each way flight with a known silent type, solid as a rock, good operator, but incapable of conversation. On the way out I commented, "Jeeez, look at that huge bush fire out there". He nodded. 2 hours or so later, on the way back, he broke silence - "The fire's going out". Truly the strong silent type. I'd prefer him a million times over others who might have a single gripe to make, a pox on the whiners!