Drivers waving others to cross out of turn at an intersection is stupid and dangerous. It messes up the flow of traffic. My two strategies are to put a foot down and stretch or rub my bum to show the driver that I'd appreciate a break for a second while they go through, or to yell at them that they have right-of-way.
This can lead to my nightmare scenario of accepting an offer to cross an intersection after an Alphonse moment, only to have the driver decide that they're tired of waiting and then proceed to enter the intersection.
There should be mandatory driver testing for license renewal. Maybe folks would remember the rules of the road if they were forced to study them every few years...
OK, I'll shut up now...