CANINE FROLICS: Cinco de Mayo isn't just for people. On May 5 at 6:30pm at Fowler Creek Park in the Evergreen area of San Jose, Society Dog celebrates Cinco de Fido. The event includes energetic walks and dog treats—plus some goodies for human companion. The cost is $8/$10; the registration deadline is May 3; see www.societydog.com for sign-up details.