I ran into a good one the other day. The navbar had the standard "log in / SIGN UP" pair. I came back after logging in, expecting that as usual the login button

I ran into a good one the other day. The navbar had the standard "log in / SIGN UP" pair. I came back after logging in, expecting that as usual the login button would take me to the app. But the navbar had changed to "log out / DASHBOARD" and guess which one I clicked.