staying signed in...

I get really annoyed by things that I deliberately click "stay signed in" and every time I turn around it's making me sign back in. Why the hell even offer the "stay" option if they don't actually do it? I think I'm smart enough to sign out if I'm on another computer. But I'm not on another computer. I'm on mine. And no one else uses it. I can afford the luxury of staying signed in. Respect my wishes, dagnabbit! :P