<P> Critical reception for Mr. Krabs was positive after the series' debut but has been mixed as the show progressed . Critics have offered praise toward his portrayal as a single father to Pearl but criticized a perceived exaggeration of his greed throughout the series' run . The character has been featured in a variety of merchandise, including plush toys, collectible figures, and video games . He also appears in the 2004 feature film The SpongeBob SquarePants Movie and its 2015 sequel, The SpongeBob Movie: Sponge Out of Water . </P> <P> Mr. Krabs is commonly known as the greedy founder and owner of the Krusty Krab restaurant, where SpongeBob works as a fry cook and Squidward works as a cashier . The restaurant's success is built on little competition and the popularity of the Krusty Krab's signature sandwich, the Krabby Patty, the formula to which is a closely guarded trade secret . Mr. Krabs frequently exploits his restaurant's popularity, engaging in price gouging and charging his own employees for use of the building's services . </P> <P> Krabs' rival and former best friend Plankton operates the Chum Bucket, a failing restaurant across the street from the Krusty Krab . A major plot point throughout the series is Plankton's futile attempts to steal the Krabby Patty formula with the help of his computer wife, Karen, under the assumption that they would be able to replicate the burgers and put the Krusty Krab out of business . To avoid this, Krabs goes to extreme lengths to prevent Plankton from obtaining the recipe; he even refuses to allow him to buy a Krabby Patty legitimately out of fear that Plankton might use Karen to reverse - engineer the formula . Krabs also makes it his duty to ensure that the Chum Bucket never has any business whatsoever . </P> <P> Krabs values money more than his own well - being and assesses the other characters based on their financial value to him . The only exceptions are Pearl and his girlfriend Mrs. Puff . His love for Mrs. Puff is so strong that it temporarily transcends his greed and drives him to buy her expensive gifts . Krabs tolerates his two employees because they work for little pay and because of their positive impact on his finances, but he is quick to rebuke them if they engage in behavior that drives away customers . Krabs has a tentative father - son relationship with SpongeBob; Krabs often scolds him if he gets in trouble, but at times gives him fatherlike advice . Former showrunner Paul Tibbitt has stated that this Krabs - SpongeBob dynamic is his favorite part of the show, telling Digital Spy in 2011 that "the aspect of SpongeBob I love the most is his undying loyalty to Mr. Krabs . No matter how Mr. Krabs treats him . I try to replicate that in my own life in every way ." </P>

Where did mr. krabs go to school when he was a child