Our 6-yr-old fell off his scooter and skinned his hand and his knee. He went inside, grabbed the Neosporin®, and asked if he could put it on his scratches.
After looking at both of his injuries, I said, “You can put some on your knee, but you don’t need any on your hand.”
He said, “Ooohhh, that’s why they call it ‘Knee’-osporin. If it was for your hand, they’d call it ‘Hand’-osporin.”