For me, it may be that the toilet paper roll needs to have the open end away from the wall. I don’t want to reach under the roll to take a piece! That’s ludicrous!
That or my recent addiction to correcting people when they use “less” when they should use “fewer”
Depends how you pronounce “historical”. If you pronounce it the ‘correct’ but outdated way, with a silent H, then saying “an historical” makes sense. But most people pronounce the H, which is why saying “a historical” makes sense. The whole reason of having a / an is because it makes it easier for your mouth to reshape itself for the next word you’re saying.