Overheard at Castle Truman

"Are there any puns about Arthurian legend?"

"Hm... Oh! I've got one: who made all the musical instruments for King Arthur's minstrels?"

"Um..."

"Luthier Pendragon!"

[awkward pause]

"I don't get it.

"Arthur's father was Uther Pendragon. I thought that was common knowledge?"

"Nope."

"Aw, do I have a twisted idea of what 'common knowledge' is because I grew up with Arthurian legends?"

"Yup."