Two recent Pearls Before Swine strips:
(#1)
(#2)
Doctor. Doctor Seuss was, of course, not a doctor of anything. Briefest story, from Wikipedia:
Theodor Seuss Geisel (… March 2, 1904 – September 24, 1991) was an American writer, poet, and cartoonist. He was most widely known for his children’s books written and illustrated as Dr. Seuss.
Constitutional. A pun. The two relevant senses, from NOAD2:
adjective of or relating to an established set of principles governing a state: a constitutional amendment.
noun dated a walk, typically one taken regularly to maintain or restore good health.
