I used to believe that the term "thing" referred not to any kind of object, but to a specific one which for some reason looked like a reddish, deflated balloon(especially in the context of "poor thing"). And when I heard the term "wits", as in "I've lost my wits" I pictured these as white plastic button-like objects.
A childhood belief about speaking

others believed things like this
- i used to think that the term 'necking' referred to boyfriends and girlfriends who rubbed their necks togetherAnon
- I used to believe that the term "being mugged" meant someone beat someone else with a coffee mug.— Matt Thiel
- I thought the term maiden name actually applied to women who were maidens.— Natasha
- i thought that "aromatic" duck was actually "asthmatic" duck.
poor thing...— rachael - I used to think that doctors added plastic to your face in plastic surgery.— caro
- I used to believe that which ever way you looked it was north, never understood how people got lost :-S— Simon