OK, forget what I said - I was wrong. Just quickly looked, and what I was thinking of is when you make an offer to double, you get a second box to make sure.
When you accept and decline, it is like you said - once wrong click and opps. So forget what I said, I like the request also - someway to make sure you don't lose a game because of a stupid accedent - and you lose a game because you got beat like it should be.