Space

But also, fuel leaks are really common with rockets, and we know how to prevent them from happening. The fuels rockets use can escape through the tiniest of faults, and the complex fuel systems they use have numerous potential points of failure. As such, it is standard practice to find these potential leaks with intensive pre-flight checks to identify and solve these issues before they escalate into a catastrophe.

It's pretty standard practice apparently, it IS embarrassing.

It's not rocket scie- oh, nvm