Nah, vim's modal. True, one of those modes is 'break everything', but the other mode is 'beeping furiously', so I generally notice I'm not in emacs pretty quickly.
Beeping is a feature. The user must be made aware that they are typing in vim, lest they start pressing random key combinations, like C-x, C-m etc.
It is well known that users may press these keys by mistake, while falling asleep on their keyboard. Therefore, vim beeps to keep them awake and avoid trouble.
Are you sure you're not using vim?