I'm sure you've come across this person or even know them personally; Mr. or Ms. Buttinsky. They are annoying!

Last week I went to the building material store for supplies. The store was hectic, and only two people worked in the plumbing department; Deb seemed to know her plumbing products, whereas Rick was struggling. Deb had a line of customers waiting for her. I didn't want to wait, so when Rick finished with his customer, I asked, "Where do you keep the shower pan liner." He took me to a different aisle and showed me pre-fab shower floors.

"This isn't what I'm looking for," I said pat...