I have the infamous "Pass me With a Smile" sticker on my van.

No one has ever 'fingered' me.  In fact, many pass me and smile (or
are they laughing?)

-Paul

>  invoke the horn or even the 'finger'.  I  have even
>found a bunch of repeat offenders or 'regulars' as I call them. (I hope it's
>not my driving)