Not all of those are necessarily the user avoiding embarrassment. "I've tried that several times" is, but the others could be correct. I don't know if my current laptop has a switch for WiFi. If it does, it's a keyboard combination I've never hit. If I do hit it by accident eventually, I will therefore have no idea what it is and will have to look it up when I figure out what has happened.
Biting the hand that feeds IT
