Henry is almost always an easy going guy, and in the rare cases where he decides to fuss the reason is usually pretty obvious -- tired, hungry, wet, nightmares, etc. If he seems stand offish when encountering new folks, it usually wears off in a few minutes. The smiles eventually break through.
However, Uncle Randy and his grey mustache represent an impenetrable wall of sadness and confusion. No matter how many times Hank visits with Randy and no matter how long those encounters last, the sadness creeps in and Henry just cannot contain himself. Knowing it would be coming with Sunday's visit, we had the camera ready.
(Thankfully later that afternoon Henry seemed to warm to Randy.)