Why does willy wonka look like a madman?

The reason why willy wonka looks like a madman is mainly because he has a strange behavior, that is, he refuses to eat sugar and forbids others to eat sugar in front of him. In the movie Charlie and the Chocolate Factory, the characters in roald dahl's Charlie and the Chocolate Factory, except Grandpa Joseph and Charlie's parents, are all chocolate inventors of Mr. Wonka. They were actually recruited by Mr Wonka with chocolate. They all admire Wonka and call him a genius, but Wonka lost his temper for only one reason, and that is "chocolate". Wonka will suddenly appear somewhere, and then let people show his new invention to his parents or the whole world, and then let people eat it after reading it. If the world does not call him a genius, he will lose his temper. In fact, Wonka is as narrow-minded as a child, sometimes cute, sometimes naughty and sometimes irritating.