It would have worked if it would have worked!

"It would have worked if it would have worked!” phrase 1. Phrase used in defense of a horribly backfired plan. 2. Phrase used to tease the creator of said plan.
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Addendum #1: Being my party's resident macgyver, I often have had some brilliant (if not entirely thought out) plans. Many of these (in just one campaign) included: attempting to cast Light on a giant's nose ring in order to blind him (it turned out not to have said ring, being a slip of words), the infamous “sounding hammer” incident, and many, many plans where one specific player would automatically listen to my plan and get horribly hurt and/or die. (In the campaign, his one character alone died three times.) In a whining defense after one spectacularly bad plan that involved going down into the Underdark disguised as drow but forgetting that no member of the party could speak Undercommon, I coined the phrase that would be my doom.
Addendum #2: Ironically, even though I was infamous for having plans that sounded good but proved guaranteed to backfire with one key element removed, the party always seemed to listen to me, thus leading to the musing: Who's the bigger fool, the one who comes up with the bad plan or the one who follows it?