One of my characters rolled several fumbles – at least three, maybe four – in a single encounter. A short fight, because the party's other members mopped the floor with the monsters. I regret to admit I didn't role-play him with sufficient rigor: he was supposed to be a samurai, but I let the other players talk me out of having him commit seppuku after that disaster.
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"The Lady of the Lake, her arm clad in the purest shimmering samite, held aloft Excalibur from the bosom of the water, signifying by divine providence that this was some killer weed."
"The Lady of the Lake, her arm clad in the purest shimmering samite, held aloft Excalibur from the bosom of the water, signifying by divine providence that this was some killer weed."