Drive Thru

What the HELL is wrong with people who go into the pharmacy drive-thru and HAVE TO ring the call button before their car even stops rolling?  I can understand them doing this if we don't acknowledge them with 30 seconds since most patients are SO high maintenance but this is ridiculous.  When they go to the drive-thru at McDonalds do they hit the bell right away?  What about at Burger King?  How about Taco Bell?  Or In-N-Out?  Of course not!  I wish we could have a sign they could see on their way into the drive-thru informing them that "This pharmacy is equipped with electricity and more modern technology than your own house so please be aware that we know you're in the drive-thru before you know you're in the drive-thru yourself".  If a patient really feels the need to push a button on arrival, they better be willing to stab them with a flu shot in return.