You are given $2.5 million. You are only allowed to use it to buy a yacht. You can make it put whatever you want on it, you can make it do whatever you want, as long as you do not go over $2.5 million. Pac-Man machine? Fine. Wheels so you can just drive it into the water instead of dinking with a trailer? Done. Anti-tank weapons? Sure. Start listing what all you would want on there.
Time's up. On your list of requirements, did you mention that the yacht has to float?
You probably think, "Duh! It's a boat! It's supposed to float, right?"
A Chinese businessman paid $2.5 mil (what happened to that whole "communism" thing?) for a yacht, the SS Jiugang, built to his specifications. It was wheeled out to the Yellow River for its maiden voyage, where it promptly sank as soon as it hit the water.
Here's video of the whole...thing. You won't know whether to laugh at the guy or cry for him. According to reports, the problem was "improper handling from the builders who mistakenly estimated the water level causing the water level to exceed the limit." They fished it out and are working on fixing it.
The moral of this story? Always keep your receipt.