There are many, many studies that prove ya get much better results when, after tellin' 'em what kind of sammich ya want, ya give 'em a firm but loving smack on da butt to drive the point home.
But, remember ... don't be TOO over-enthusiastic with yer swat ...
... ya don't wanna make 'em too disoriented to where they can't make ya a proper sammich.
The essential American soul is hard, isolate, stoic, and a killer. It has never yet melted. ~ D.H. Lawrence