Isaac is back to normal after smacking his lip on flagstone that we recently put in on the patio. We went to Urgent Care and he got 4 stitches on the inside of his lip, which was a traumatic experience for all involved (Charlie watched TV in the waiting room).
So, here's a picture of him the day after he had the stitches put in:

and here's what he looks like today, 5 1/2 days later.