Today is Dunce Day. Tell your favorite nincompoop to go sit in a corner.

SEE
Folklore by Diana Fayt
What: Local ceramicist admires age through drawings of Old World bubbes cut and pasted onto recycled cardboard envelopes.
Why: A wrinkle in time.
When: Thurs., 6:30-8:30 p.m.
Where: CandyStore, 3153 16th St., b/t Valencia & Guerrero Sts. (415-863-8143).

GO (and DRINK)
Wild Pig Party
What: Sample the first release of Cochons Sauvage zinfandel at the Michel-Schlumberger Wine Estate while two-stepping to bluegrass and gnawing on spit-roasted swine.
Why: Su-weet!
When: Sun., 1-4 p.m.
Where: 4155 Wine Creek Rd., Healdsburg. To reserve, call 800-447-3060.

DO
Green Festival
What: Mingle with the ecognoscenti over art, politics, music, and food.
Why: Everything you ever wanted to know about sustainability but were too afraid to ask.
When: Fri., 2-8 p.m.; Sat., 10 a.m.-8 p.m.; Sun., 11 a.m.-6 p.m.
Where: San Francisco Concourse Exhibition Center, 635 8th St., at Brannan St. Tickets online at greenfestivals.org.

BUY
Harputs Market Online
What: Score hard-to-find lines like Margiela, Stephan Schneider, and Junya Watanabe without trekking to lower Fillmore.
Why: To market, to market.
When: Morning, noon, night.
Where: Online at harputsmarket.com.

EAT (and DONATE)
Tartufi Bianchi at Perbacco
What: Feast on white truffles and magnums of Piemonte wine for a good cause: All proceeds benefit Meals on Wheels.
Why: Hunger is no truffling matter.
When: Thurs., 5:30-10 p.m.
Where: 230 California St., b/t Front & Battery Sts. (415-955-0663).