What's the dumbest thing you've done?

[Quagmire]

First time I added a sump,I filled the sump to the top.Then shut off the main pump. that was good for about 5g on the living room carpet.

I hooked my RODI up to the fauset,turned both taps on full,then went to work.The fitting came apart and flooded the whole place.There was only about 10g of RODI water in my container.Good thing I don't pay for water