Doonesbury by Garry Trudeau for December 21, 2016
Transcript:
Mike: We'll miss you, Your Spaceship. Zonker: And I you, confrere, but crown and duty call! Mike: You're really staying in a castle? Zonker: The Duke wouldn't take nay for an answer! Mike: Listen, Z, thinking back on your little stay here, I might offer one piece of advice. Zonker: Shoot, bro. Mike: Don't dry your socks in his toaster oven. Zonker: I... I had no idea that bothered you.
It used to be that accepting a title from a foreign government was a good way to lose your citizenship. The Constitution still forbids it.