You Say Scotoma, I Say Scatoma

"It's like scotoma," he said, "you know, blind spots."
"Ah," I said.
"Sometimes you can be fixated on just what you want to see, not the whole picture."
He wasn't talking about me about me in particular -it was a work meeting- he was talking about people in their jobs. Although it could apply to just about any situation.
"And not to be confused with scatoma," I said, "you know, when you have backed up feces in your rectum." I laughed. I laughed because imagine getting the two confused in conversation, what a hoot.
He stared at me.
"You're right," I said and cleared my throat. "Sometimes people can get too fixated on just what they want to see."
Thinking about it, I don't think anybody would ever make a joke about scotoma and scatoma. It's just too obscure, and the odds of it coming up in conversation are about nil. Only a fool would try and make a joke like that.
Let's pretend I never wrote this.