When you arrive at work in your slippers! (No, I haven't, YET!)
When you lose your keys time & time again in a short space of time! (A sure sign of brain overload for me)
Wondering why you have that terrible stomach discomfort & discovering, on your next toilet visit, that you've accidentally put your nickers on the wrong way: one of the leg holes is strangling your waist!
(Yep, done that!)