The most infuriating thing is that when logging on to live.com or its friends, they hook the tab key. When you type in your email, then tab over the next field,

The most infuriating thing is that when logging on to live.com or its friends, they hook the tab key. When you type in your email, then tab over the next field, it redirects underneath you. This infuriates me. It also really screws with people who can't touch type, and thus don't realize it's happened until they look up after entering their password only to realize the page changed and their text was lost. I presume what's going on is the site realizes the login won't work and redirects you to the domain where it will, but it's just terrible design all around.