What's so Funny about the Haight?

Flashback, a walking tour of San Francisco's Haight Ashbury district, is coming up this Saturday, February 27 at 1 pm. With a Goldstar discount, it costs $15 and lasts about 2 hours. The promo says the tour is lead by a comedian, which made me wonder what kind of laughs they'd get out of those wild and crazy times. Weather predictions warn of rain that day, so I'm still on the fence, but it's in the hopper for my next foray into San Fran.