Quotes: Punctuated! For! Emphasis!

Bill Corbett: Well, I think he certainly proved that THIS! IS! SPARTA!
Mike Nelson: Yeah, his kids make fun of him cause when he's handing out stuff on the 4th of July he insists on saying, "THIS! IS! A SPARKLER!"
Kevin Murphy: Or, when he's giving his car a tune-up and his kid asks, "Hey Dad, what's that small white thing with the metal at each end?" he always replies "THIS! IS! A SPARKPLUG!"
300 (RiffTrax)

"That many periods in one sentence can't be good for your brain."