I was cutting Baby Blue's finger nails today (for the second time since he's been born) because he's been clawing at my boobs when I feed him and it hurts, and I slipped and pinched his little finger enough to make it bleed.
He looked at me for about three seconds with this absolutely shocked expression and then burst out into the most pitiful cry complete with tears. This is the first time I've seen tears (apparently it takes a while before they start to tear up when they cry). It was the most intense cry I've heard come out of his little lungs. It completely broke my heart.
He's asleep now. He seemed to forgive me when I nursed him immediately after (and decided to stop with the nail cutting for now), but that moment when you first hurt your child by accident is unforgettable.