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”
Wrong. A couple is two exactly. After the wedding: Oh look at the happy couple. There aren’t 3 or 4 people standing there, 2 people are standing there. A couple.
To couple train carriages together means to attach two carriages together. There are more carriages behind that one, but they were all individually coupled together.