Yep, rather straight forward thought there. If you are outside, it's late, you maybe had a drink and it's even raining this can happen. You can also accidental

Yep, rather straight forward thought there. If you are outside, it's late, you maybe had a drink and it's even raining this can happen. You can also accidentally cause a submit while entering your email address. Of course when you autofill forms that's not a problem, but thinking that people don't mistype, which can be hard to see, depending on the mistake you made is kinda stupid and there is nothing more annoying then realizing your favorite login name is used in unaccessible just because the person programming the system thought it was impossible to ever enter your email address incorrectly.