SFist Photo: Ten Commandments of Strybing Arboretum
Can you figure out the iconography on this sign in Golden Gate Park? A larger, clearer version is here

Don't cycle!
Don't shred!
Don't skate!
Don't scoot!
Don't walk! (transitive)
Don't play!
Don't pluck!
Don't trample!
Don't feed! (transitive)
All that adds up to "DON'T LIVE!" according to at least one vandal. The rules at the San Francisco Botanical Garden at Strybing Arboretum are not unreasonable. However, their new-school international-style signs are a little different. These stacked up figures strike some as funny.
Obviously somebody has made an effort to avoid using too much American English, that non-inclusive sole official language of California. But be sure to check out the arboretum when you can. It's very pleasant with many interesting things. Just be nice when you visit.
