It was an all-too-typical scene: idiot driver wants to merge, slows
down, turns on signal, and WAITS. There is a space in the adjacent
lane more than large enough for her to merge into, but still she
hesitates. Through the open window she begins giving hand signals to
the driver in the target lane, seeking assurance that he will actually
allow her to merge in. The other driver, probably dumbfounded at what
he is seeing, does not respond at first, so bimbo keeps up the
histrionics until finally the other driver waves her on. At long last
she completes her merge.

Meanwhile, everyone in the lane behind this genius had yet another
precious minute stolen from their lives.