VIDEO: Sneak Peek - Rivalry Grows on ABC's SHARK TANK

On this Friday night's SHARK TANK on ABC, the rivalry between Lori and Daymond turns ugly as they compete for the business of a woman from Los Angeles, CA, who created a line of dresses made from pillowcases. Later on, the Sharks can't stop laughing when a young lady from Easley, SC announces the name of her specially-made spatula that can retrieve cream from the bottom of containers.

Also, the Sharks appear more feisty than usual after a father and son from Van Nuys, CA provide them with a sample from their line of vitamin oral sprays; and a man from Marysville, WA hopes his energy boost waffle product will be an eye opener for the Sharks. In a follow-up segment, there's an update on brothers David & Stuart Pikoff from Austin, TX, who passed on Kevin's Season 2 offer to invest in their Games2U mobile entertainment business. The episode airs FRIDAY, OCTOBER 12 (8:00-9:01 p.m., ET) on the ABC Television Network. Get a sneak peek below!

The Sharks in this episode of "Shark Tank" are MARK CUBAN, LORI GREINER, Robert Herjavec, Daymond John and Kevin O'Leary.

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