Other driver (not me):

"Gee, I have to quickly cross three lanes of traffic at once for some reason. Those drivers in the other lanes are going to be surprised. If only there were some way to signal my intent, some way to let them know that I will be changing lanes in front of them very quickly. Maybe a blinking light of some kind...

Oh well, here I go anyway."

SCREEEEEEEEEEEEEEEEEECH!