Here at Prawfsblawg they are collecting favorite bad legal arguments.
One day sitting in the Fourth Circuit, I heard an exchange that went something like this:
Lawyer: ". . . Besides, that's not my only argument."
Member of the panel: "It better not be your only argument."
Alas, I've forgotten the issue.
I can remember weird evidentiary objections at trial better than weird arguments in briefs.
One of the strangest is retold here.