Thankfully, if someone is MITM'ing you, or has acquired the IP of your host, then the SSH fingerprint check against your known_hosts will prevent them from snagging your password in this manner. (provided the host's private key hasn't also been stolen)
That is, as long as you don't ignore the "IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!" message.
That is, as long as you don't ignore the "IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!" message.