If This Happens, We're Doomed

The only reason to use diet coke is that it's less sticky. Normal coca-cola would be more sticky, therefore creating even more of a mess.

A weapon of mess destruction.

I thought it was the something else in Diet that caused such a vicious reaction...

It is. It has to specifically diet coke. Its the sweetener used in diet sodas

No, because we'd all be dead.