Here is one more: If I accidentally put my email and password in the "Sign up" form instead of the "Sign in" form, just sign me in. I don't need to know that

Here is one more: If I accidentally put my email and password in the "Sign up" form instead of the "Sign in" form, just sign me in. I don't need to know that a user with this name already exists and have to go looking for your sign-in form to enter everything again.