Mc "Mack" Allen spent most of the pandemic with his dream of becoming a Muni driver put on hold. But he's driving buses now — part of the new class of Muni drivers — and his tweet thread about the "Shang-Chi" movie bus chase went viral, with a shout-out from Shang-Chi actor Simu Liu himself. Total SF hosts Peter Hartlaub and Heather Knight rode the 44 O'Shaugnessy with Allen, then sat down to talk to him about becoming a bus driver, his first ride on a bus and why he thinks driving a bus will bring him ever closer to San Francisco. Total SF has an audio tour in Golden Gate Park! Learn more and sign up at sfchronicle.com/audiotours Produced by Peter Hartlaub. Music is "The Tide Will Rise" by the Sunset Shipwrecks off their album "Community" and cable car bell-ringing by 8-time champion Byron Cobb. Follow Total SF adventures at www.sfchronicle.com/totalsf Learn more about your ad choices. Visit megaphone.fm/adchoices