 No one's saying multiplication chart. No one said that because that's actually quite helpful. Maybe that could be it. But what's the oddest thing you've had to memorize? Had to memorize? Well, or just something maybe you even did just out of your own curiosity. Well, I mean, phone numbers, as you mentioned. That was one other thing. All the different phone numbers we had to know because there was no such thing as cells back in the day. You just had to know stuff.