@Bruce: These past few years, "d" certainly seems like the most common answer, especially among drivers who almost kill me (and then smile weakly as if to say that they don't mean to be driving like an idiot).

The one who came closest to taking me out today, though, wasn't on the phone. He was just following the two people ahead of him who made a right turn across the crosswalk. But when I made a "What's up with trying to kill me?" gesture, he pointed as if to say "Hey, I had a green light!" Sadly, I didn't know a gesture that means "Yeah? Well, when the light turns green so does the walk signal!"