"It's our antagonize-the-customer sale!"

Yes, people should read ad copy carefully and comprehend what they're reading.  Still, it's irritating when any business tries to mislead customers by advertising "going out for business" prices.  It's shady when advertisers count on people misreading "for" as "of" to get them into the store.  Besides, every store is going out for business.  I've never seen any store have a "Whatever.  It's all moot," sale.