I’m getting old

I worked at a Pep Boys in high school, behind the parts counter with retired rail road guys who customers would approached first at the other end of the counter, then the rail road guys would walk over and ask me. An old lady (must have been 30 something) came in asking about a plug that goes in the radiator. I flipped through (we had a rack of books back then) and mentioned the pet **** but kept looking. I looked up and she was gone (long walk to the front door. Must have ran away). Her husband shows up shouting from the front doors. I ask him to come back and I will show him in the book. He shouts less loudly then also runs away. Must have been the shame.