Yelling man’s come-uppance

All afternoon, there was a guy standing on the sidewalk opposite our office. He was high, or crazy, or both, and yelling incoherently. Then, as I was walking to Montgomery Station to catch a J car after work, he was at Kearny & Post, a block away from our office, getting arrested by one of the two traffic cops who stop traffic so the trolleybus can change lanes. He was addressing the police officer as "motherfucker," which did not seem to affect the arrest process at all.