I’ve reached a point in my life that I just move over and let them by. Eventually they will cause a wreck, and I want to be far away when that happens.
In case you don’t know how insurance works, the crash that occurs (let’s not call it an “accident”) when you spike your brakes will not be scored against you for premium purposes as the “follower” will get cited for “following too closely”. However, every accident you are in is an “incident”. Too many “incidents” and, even if you are not at fault for any of them, you will get dropped by your insurance and see your premiums go up. My dad got dropped when a police horse kicked his car at a stop light. In the previous two years he had also been hit by a red light runner and stop sign runner. The insurance companies believe (and statistics support) that drivers who are in a number of accidents, even when not at fault, will continue to get into accidents.