Its different than what you're getting at, but this one happens to me all the time. I was waiting at a crosswalk yesterday at a road with two lanes of traffic going the same direction. A cab stopped and waived at me to go. He had a mad look on his face when I didn't walk out. A car in the next lane then immediately went flying by. If I actually listen to that cab driver, the second car flattens me. Luckily I'm smarter than so many other people who just blindly walk across. Yeah, its the law to stop for people in a crosswalk, but I'd rather not take that chance and just walk out there.
Here's another one that bugs me. I'll be waiting to cross a street and car after car will be driving by. The last car in the group will stop and let me cross. Now I know the driver's just trying to be nice, but you're the last car and there isn't another one in sight behind you, so I would've crossed right away after the car passed me. It just seems like a waste to me. That car would've been out of my way much quicker than I would be out of his way.