(joshua728)

I decided to run some experiments on the steel used to build the park's rides. I found that if you melted the steel down and combined it with chromium, stalagmite, and mercury phosphate, it created a kind of super helium. Shaggy and Scooby must have inhaled some helium gas from the Manticore's posterior relief hole. That's why their voices were so high. I figured if I could get the park to close, I could take all the steel, melt it down, and sell the super helium to the Australian zeppelin fleet. I'd have made a fortune and shown you up in the process, Velma.