When you're going to make a turn don't put your signal light on at the last minute. I mean, I guess you have more decency compared to the people that don't even do that.
Even worse is when you're at a red light and you're the first car ahead of everyone without a signal light on, you force me to believe that you are going straight. This causes me to drive up behind you but then you trick me because as soon as the light turns green, you turn your signal light on. Asshole.
I drive on the Bedford highway every morning on my way to work downtown. Near the end, I can go on the bridge, to Windsor St, Kempt Rd, etc. There is always a pileup of cars trying to all switch lanes. THE LINES ARE PAINTED SOLID FOR A REASON. If everybody would just keep driving and wait to switch lanes, there wouldn't be such a hold up!
By no means am I a perfect driver. But, I mean, COME ON! —Trying to get from A to B