Joke

A husband & wife were arguing. The husband says " When you die, I'll write on your grave, here is my wife, cold as ever". His wife replies, "When you die I'll write, " Here is my husband, stiff at last".

Actually, that is rather nonsensical in so much as, by the time he is in the grave, he wouldn't be stiff at all. Unless, of course, he was laid to rest within two days of his death. It follows, does it not, that the joke is, intrinsically, logically biconditional?
Please don't call me pedantic!