My dad was a US investment banker and traveled Atlantic to Pacific on a regular basis so they always gave him first class.. One trip, he was minding his own business when a bunch of long-haired guys started asking him questions.. they'd heard him talking investment with one of his peers before they got on the plane..
Turned out to be a Kiss out of makeup.. Dad said that they were the most well-informed non-professional financiers he ever met..
Unbelievably, he did not get signatures for his guitar playing the Son but he had a great time:-)