In its column “The Regulars,” The San Francisco Chronicle features stories about “ordinary” San Franciscans. But there’s absolutely nothing ordinary about 67-year-old Suu Ngo, which is why a video telling her story has been a viral sensation. Having emigrated from Vietnam as a single mother in 1985, this hard working grandmother rarely has time to catch her breath, and that’s the way she likes it. Caring for her grandchildren since her daughter’s death, Suu Ngo has always balanced work and child care, and as she sees it, as long as she remains strong, she expects to continue on in her job as a street sweeper for the San Francisco Dept. of Works for as long as she can. She’s bold, joyful and passionate about her love of work and adopted country. She’s wowed the internet- now let her wow you. Watch This.