You hear the coolest things on HF, on repeaters too. Signal/noise ratio not great, but gold is struck in eureka moments.
I once heard a pilot from Alaska talking to a 90 year old guy about the time he landed his plane in the middle of nowhere in Denali park, going to do a little hunting, natch... He was seperated from his party. A grizzly bear was down by the plane, started running towards him, and as he said, "I aimed my gun, and realized that if I miss this shot, my daughters would never see me again." The old guy said something like, "it seems you've had an interesting life."
Then there are the guys and gals on the local repeater (interestingly, a lot of women have tech licenses these days) who I don't know from Adam, and when they're in the hospital or whatever, I worry about them.
I suppose there might be better ways to waste my time. Or, as Bon Scott would say, maybe "doin' nothin' means a lot to me."