Attention Shoppers...
A very timid woman went to the grocery store to buy several items. When she reached the check-out counter, the clerk discovered that the price tag was missing from her box of Tampax. (This was before the days of bar-code scanning.) So over the loudspeaker, the clerk asked for the stockboy to check the price of Tampax. This embarassed the woman to no end.
Imagine her mortification when the confused stockboy, thinking the clerk had said "thumbtacks" came back over the loudspeaker asking, "Do you mean the kind you push in with your thumb or the kind you pound in with a hammer?"