Hundreds of entrepreneurs have pitched their companies on "Shark Tank" since the show debuted in 2009, but some of the most memorable pitches are the worst ones.They stand out for different reasons. In some, the products are totally infeasible. In others, the entrepreneurs are completely unprepared or so arrogant they don't have a grip on reality.In anticipation of the seventh season premiere on Sept. 25, we've gathered the Sharks' least favorite presentations as well as our own picks for the worst pitches in the show's history.SEE ALSO:The 18 best 'Shark Tank' pitches of all timeVestpakz, Season 6When Arthur Grayer and Michael Wooley walked into the Tank seeking $50,000 for 10% of their children's backpack alternative company Vestpakz, the only thing going for them wasa couple of cute little kids modeling the product. Wooley's daughter invented the product when she was 12, and he made a licensing deal with Grayer in 2013, landing the product in 75 Walmart stores.The annual sales of $10,000 wereanemic, especially with the context of being in Walmart, but the Sharks were intrigued by the story of Wooley's daughter, who won an entrepreneurship competition and even made it onto Oprah Winfrey's talk show.The catch: All that happened in 2003, and Wooley's daughter was now 27. The investors exploded inlaughter at the revelation. The guys didn'tget a deal.BedRyder, Season 6BedRyder chief marketer George Conway asked the Sharks for $200,000 in exchange for 15% equity in his company, which makes safety seats for the backs of pickup trucks. To Conway's credit, he's a great salesman and he was animated and fun as he demonstrated the product on a pickup. But his answers to the investors' most important questions left them shaking their heads.For example, when Lori Greiner asked him if ithadundergone crash testing, Conway replied, "Honestly, yes! I have done my own. By accident." The Sharks liked Conway as a person, but the myriad of things that could go wrong with the deal cause them all to back out. "When you leave the Tank, I want you to take that truck and drive it off a cliff," Kevin O'Leary told him.Tycoon Real Estate, Season 6Unfortunately for Tycoon Real Estate founder and CEO Aaron McDaniel, the Sharks not only hated theproduct idea but some of them hated the entrepreneur behind it. McDaniel pitched his real estate crowdfunding service as a way for average people to invest in real estate. He failedto convince the Sharksthat it was a safe model and that he was someone to be trusted with money.Mark Cuban yelled that the idea was "scammy," Barbara Corcoran thought it was "spooky," and O'Learywho was actually interested in making a dealasked McDaniel if he had a criminal record. In the same way "Shark Tank" can make a company, it can break one, too.See the rest of the story at Business Insider NOW WATCH: Turns out 'Shark Tank' investor Robert Herjavec doesn't value advice at all
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