It genuinely looks like his head is getting Scanner'd.
I had the honor of seeing Rick recently at Swingin' Door. Nothing happened besides him sitting at the bar having some drinks with his phone in front of his face childing stlkers the entire time and saying a few words to the person on either side of him for a total of maybe 40 seconds. I couldn't tell what the bartenders thought of him because they were really busy and generally not superfluously interacting with anyone. But yeah his bulbous melon is a sight to behold. He looks like an Easter Island statue.