A sentence in my Contracts casebook that made me laugh (and this probably won't be funny to anyone else, but that's okay):

"For the student attempting to grapple with the niceties of consideration theory, developed over centuries of obscure and often inconsistent case law and commentary, a spoonful of Legal Realism may at this point help the doctrinal medicine go down." (p. 51 in Knapp, Crystal, and Prince's Problems in Contract Law: Cases and Materials, 5th ed.)

Made me start singing. And then I wanted to watch Mary Poppins instead of reading.