The New Venice, Part XVIII: I parked my near my house at 3 A.M. the other night. As I was about to shut off the engine, I looked in the mirror and  saw someone coming up the sidewalk behind me — then, suddenly, they open the door and try to get in the rear seat. I’m terrified, and floor it, leaving a skid mark and perhaps this person’s dismembered arm dangling from my rear door handle. …. Only when I’ve parked several blocks away and calmed down do I realize what probably happened: They thought I was their Uber. … Arianna, fix this problem! …