Sunday morning in the Tenderloin a man walked into convenience store, told the 72-year-old store employee, "I'm taking this soda," and promptly walked out. When the employee tried to stop the guy, he threatened to stab her with a hypodermic needle, warning her that he was HIV-positive.

The thirsty thief, described only as a man in his late 40s, appeared to be homeless but police failed to find the guy during a search of the neighborhood. Later, however, the guy returned to the same grocery store and made another scene when he threatened the woman a second time and reportedly tossed some items on the floor. SFPD still hadn't made any arrests as of this Tuesday morning.