SpongeBob Shocked Mr. Krabs

What could make a red character from the SpongeBob series be so shocked and suspicious? As Eugene Krabs likes money over everything in the world, we can suggest that he saw a lot of money or an empty wallet. Or maybe somebody like Plankton stole his recipe of Krabby Patty? Or maybe somebody did something bad to his daughter Pearl? We will never know it. SpongeBob cursor with Shocked Mr. Krabs.