I have a user claiming he can log in but cannot post. While viewing his profile to try to trouble-shoot the situation, I noticed the "Become this User" button.

I am wondering if I clicked on the button, would I become him for long enough to test whether I (he) is able to post? How do I revert back to my admin account when I'm done? I'm a little reluctant to test this feature until I know exactly what it does and if there are any questionable side effects (I'm not thrilled about the prospect of entering someone elses morbid virtual body) wink