St. Agnes Crab Feast, Jan. 11, 6 p.m. cocktails, 7 p.m. dinner; 3966 Chestnut Avenue, Concord. Hosted by Knights of Columbus. $40 adults, $5 children 4-11, free for 3, younger. R.S.V.P. by Jan. 6. 925-207-0270.
Twelfth Night 6 p.m. Jan. 5, St. John's Church, 5555 Clayton Road, Clayton. Celebrate end of holidays, 20th anniversary of Rev. Amanda May. Wine, hors d'oeuvres, raffle, silent auction, Grant Street Players. $25. 925-672-8855, www.brownpapertickets.com/event/534712.
16th annual Preschool, Parenting Fair 11 a.m.-2 p.m. Jan. 11, Pleasant Hill Senior Center, 233 Gregory Lane. Information on preschools in Martinez, Pleasant Hill, Concord. Free. email@example.com.
Free e-waste recycling 9 a.m.-1 p.m. Jan. 4, DVC, 312 Golf Club Road, overflow parking lot 7, Pleasant Hill. Go to www.NoEwaste.com for acceptable items. 866-335-3373.
Theater, choir auditions
Clayton Theatre Company auditions noon-5 p.m. Jan 5; 7-10 p.m. Jan. 6-7, Diablo View Middle School, 300 Diablo View Lane, Clayton. Provide head shot, 32 bars of Broadway song, two-minute monologue. 925-222-9106, www.claytontheatrecompany.com.
Contra Costa Children's Chorus auditions 4 p.m. Jan. 8, Our Savior's Lutheran Church, 1035 Carol Lane, Lafayette. For youths 6-16. Appointment or questions: 925 -945-7101, ext. 1, firstname.lastname@example.org.
Health care information
Preparing for Affordable Care Act information session 6:30 p.m. Jan. 8, Clayton Library, 6125 Clayton Road. A brief talk, questions on how to read, what to look for in policy. Register ccclib.org, 925-673-0659.
Ham radio course
Benefit for animals
ARF Stars to the Rescue, 7 p.m. Jan. 4, Lesher Center for the Arts, 1601 Civic Drive, Walnut Creek. Performers Bruce Hornsby, Bob Weir, more. Benefits ARF. $45-$250. 925-943-7469.
Winter camping basics 7-8 p.m. Jan. 8, REI Concord, 1975 Diamond Blvd., Concord. Tips to stay warm, select winter gear, camp set up. Free. Register: REI.com/Concord, 925-825-9400.
Clayton Valley Charter High School, 1101 Alberta Way, Concord, open enrollment through 4 p.m. Jan. 29. Eighth-grade parent information 7 p.m. Jan. 14; academy information meeting 7 p.m. Jan. 16. claytonvalley.org, 925-682-7474.
Dirt Gardener talk
Clayton Valley Woman's Club meets 9:30 a.m. Jan. 14, Holy Cross Lutheran Church, 1092 Alberta Way, Concord. Buzz Bertolero speaker. 925-672-9448, www.claytonvalleywomansclub.org.
Band booster carwash
Concord High Band Boosters Car Wash and bake sale 9 a.m.-4 p.m. Jan. 12, 4200 Concord Blvd. Both benefit CHS band. 925-687-099.