"This is very rad. It's Halloween in San Francisco!" Determined to avoid last year's bacchanalia in which five people were stabbed and dozens were arrested for public drunkenness, police banned alcohol from the famed street celebration and set up checkpoints around the party's perimeter. I personally stayed far away from the Castro last night as I have the last few years because it's such a crazy melee, alcohol or not. But I still look forward to taking my sister there one year.