Yes, this happened at work. No, it wasn't me.
Lesson for work today: If you're trying to teach me something, especially if it is complicated (freakin complicated!) and you forget an important detail or tell me the wrong info by mistake? Do NOT try to tell me that you did tell me the right thing. No. You did not. My memory is pretty damn good and I can quote exactly what you said. /That/ was not it. Dingo. I am conciderate enough to not quote you out on it, but don't press me.
I am such a Ferdinand.