At what what point does a rat become a mouse when entering a house?

And at which point do mice become rats when leaving a house? Do they even change tittles, or they still rats and mice, respectively.At what what point does a rat become a mouse when entering a house?
Mice and rats are two seperate groups of rodents.At what what point does a rat become a mouse when entering a house?
it's two different species, omg! a rat never becoems a mouse and vice versa just like you never become a monkey when you're in the woods (or do you?).
rats and mice are different species.. they do not turn into one another except possibly in a movie.
Er ... what? Rats are rats and mice are mice. One cannot turn into the other.
When they put on little red shorts and white gloves.