I hear 'ya, but the behavior will never cease if not confronted. The Amish are bullies - fight back and they run like rats.
I shop at a Super Walmart in suburban Baltimore, (I know, I know) and it's not the more than 15 items types that bother me so much. It's the people who have a basket that clearly has more than 15 items who then proceed to have the contents rang up as two separate orders. To add insult to injury the Democratic People's Republic of Maryland gives their EBT cards the very Orwellian name of Independence Cards, and often these same customers pay for their orders with an "Independence" Card.
You're right about confronting these b@st@rds; they are bullies. An aside - is it just me, or does behavior like this - unmitigated callous disregard for social order - seem to have become more prevalent since the Immaculation of Lord Hopenchange?
Like another poster said previously, I take solace in the fact that if there were ever a real disaster in this country these vermin would kill each other first.