I used to use the line "Do you always drive like a _________ or just on Saturdays?" Just change to the correct day of the week and switch drive to park. Use the vulgarity of your choice.
Is it just me or does anyone else notice that of late people are driving worse in general? I had a nitwit from Ontario almost hit me today because he did not look or even signal before changing lanes. I had to swerve to the right to keep from getting hit. I laid on the horn and the AH flipped me off. I was hoping he'd get out of his car at the next light

but he didn't.

I had a surprise for him...