People Who Know Nothing But Should Know Something

Some days it's exasperating just being alive. Today is one of them. Owing to an unfortunate health emergency -- a blood clot in my leg -- I had to purchase a pair of knee-high compression socks. So off to the drug store I went, and asked the pharmacist where I might find such things. He directed me straight to them, saying, "They go by your shoe size." 

Only they didn't. The package said nothing about shoe size. Instead the directions were to measure at the widest part of the calf and also the ankle to determine your size. Thinking that might be the case, I had brought a tape measure with me.

As I was busy measuring my leg, the pharmacist called over to me, "Can I help you? What are you doing?" I explained, after which he muttered something under his breath, shook his head and turned away.

Moral of the story: Whatever it is, if it's possible to do it yourself, do it yourself. People you think will know more than you usually don't.