Young Sheldon: 10 Big Bang Theory Inconsistencies
3. Soft Kitty
In The Big Bang Theory episode The Adhesive Duck Deficiency, Penny falls in the shower and dislocates her shoulder. With the rest of the gang away on a camping trip it falls to Sheldon to save the day. He drives her to the emergency room, looks after her there, takes her home and tucks her up in bed. He even helps to get her dressed but apparently there are some limits to his friendly support.
When Penny asks him to comfort her by singing “Soft Kitty” Sheldon refuses. He explains that “Soft Kitty” is reserved for comforting the sick, not the injured. Penny’s bad shoulder doesn’t count. Eventually she does manage to coax the lullaby out of him and it’s a touching moment. Sheldon is nothing if not a stickler for the rules. His willingness to bend them for Penny is a sign of the pair’s growing affection for each other.
All of which is undercut just a bit by a Young Sheldon episode which shows Sheldon singing the song to himself after a bicycle injury. Oh well, apparently that rule didn’t matter so much after all.