I love Cave Johnson as a character because everything about him is just so fucking ridiculous. Dude’s first name is Cave and he became a billionaire by selling shower curtains to the military. He then said “fuck it, science time” and bought a giant abandoned salt mine in which he built a company called Hole Science where they invented the Hole Gun, but instead of, yknow, selling the Hole Gun to the public and making another shit ton of money, he kept making them run tests on it until they went bankrupt. And then when they went bankrupt he bought 70 million dollars worth of moon rocks and ground them up which killed him but apparently no one else, implying that either he was the only person to come into contact with the moon rocks or he just straight up snorted them or some shit, and before he died he told his company to upload his assistant into a computer so they do and then the computer kills everyone. Also he won an award for potato science at some point