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”
If you think of sandwich as a verb, then any food that is “sandwiched” can be a sandwich. Hamburgers, hoagies, hotdogs, tacos, quesadillas, etc. However, by convention, when there is a more common, dedicated word for foodstuff you should use that instead. Tacos are sandwiches but it is weird to call them that when we can just call them tacos.