My wife and I were in the upper peninsula of Michigan on our way to Tahquamenon Falls. I knew how to get there but we just needed to see how long it was going to take because we had a few side stops we wanted to make.
We had to speak to our navigation system because we were moving. It didn't understand what she was saying. I tried saying it and it said the same thing. Then I tried spelling it out via voice and about halfway through it started giving me directions to some other place in Wisconsin. I tried spelling it faster and it told me to slow down.
Phone service up there is spotty at best so we didn't have that option available.
I finally just pulled over and typed it in to get what I needed.