I've got to correct myself!

I remembered one incident where I was getting something for my wife, and the sales clerk said something.

For some reason, my wife wanted me to get her a pair of cheap leggings. I can't remember why, she doesn't normally wear them, and if she wore them at all, it was only that once.
I just went to one of the local "dollar" stores and picked up a pair, along with a few other things, I'm sure.
The cashier insisted that I must be buying them for myself and wanted me to "try them on" - AWKWARD!!!
He wouldn't listen to my reassurances that they were for my wife, and kept talking. If I HADN'T been getting them for her, I would have left in a huff.
Odd - but there you go. No real harm done, but I wonder what his issue was.