The “tea” bit of “Dr Yes” was clearly inspired by these guys (more stuff on them at www.ybcw.com/strip1.php – this is their first appearance in print):
Dr Yes: Spy Vs Spy
Published by Felicity Banks Books
I write books (mainly adventure fantasy for kids and young adults), real-time twittertales, and a blog of Daily Awesomeness. @Louise_Curtis_ and http://twittertales.wordpress.com. My fantasy ebook is on sale at https://www.smashwords.com/books/view/278981. View more posts