There are a couple of places during my commute where it is quite obvious people are going to merge. However it seems quite a few of these folks drive cars without working blinkers. I’ve actually conducted a brief (and very impartial) study and have discovered that the higher-end the vehicle, the greater the odds of the blinkers being broken. So little white pickup with “broken” blinkers–who gestured in frustration after I did not create a gap–whom I proceeded to give the finger–and then who proceeded to wave at me–if you’re not signalling…you’re not merging, and I hope you have a nice day.