I was just putting a dinner plate into the refrigerator and I reached in too far - at about waist height.
Heard it pop and then it hurt like the Dickens for about a minute but felt like an hour. Manipulated things back into shape but geez.
Ouch! I totally understand, Paint. Once my back went out as I just leaned forward about three inches to wash my hands in a bathroom sink! Lower back went "pop!" and I was a cripple for the next four days. Just doing routine stuff.