When you're buying drugs, all kinds of bad things can happen -- but losing your clothes usually isn't high on the list of concerns (particularly when you are buying your drugs in Pacific Heights).
Another possibility is that the perpetrators wanted to humiliate the victim so he didn't go to the police. "It's very unusual for people to take clothing," she said. "It tells you there is something more to the story."
The stripped-down victim went ahead and alerted police, who made two arrests and recovered the clothing. Apart from wounded pride, the victim did not sustain any serious injuries.