I believe in no sparring training. In fact my schedule has that right after my swimming lessons where we never go in the water. But I bet if we ever get wet we'll be really great swimmers!
Believe it or not, there are some people out there who will pay big money to take dry land swimming lessons, just as long as they never have to get in the water if they don't want to. They don't care if they can actually swim or not. They just like taking lessons.