Thank you, I have never had this experience and didn't think of signing out of every site I visited.
I just experienced this the other day, and I have been a bit forgetful myself. When you really see it happen, you have to believe it! thank you for the reminder.
I've done it myself when I was caught up in a freebie frenzy. I went back, and sure enough there was all my info. Yikes! So, now I triple check.