[ZanyProgrammer]

Just gate off the street entrances to the BART stations along Market Street and in the Mission. Problem solved.

I would really (ideally) like the urban BART stations to have restrooms, but unless the authorities are going to make sure they are clean, safe and sanitary, that's not going to work.

[cpeterso]

The restrooms in the downtown SF BART stations were open to the public before 9/11. They were closed and never reopened.