Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: we just got back from a camping in 31°c. i used the toilet to pee.. a lot. 

we got back into town, offloaded the trailer and i figured i'd dump the full grey water tank (dish/sink used water tank). 

unfortunately - i didn't think to check if the 2/3 full black water (poo/pee holding tank) valve was in or out. 

the moment i open the valve cap, dark chunky water with a heavy ammonia smell absolutely blasts out - spraying me and the driveway, the white fence. 

i immediately see what i've done, panic and run for the hose so i can at least dilute the stench. the hose (fancy xhose) is tied in knots and the awful smell is building. i run the hose, start spraying the drive way with reckless abandon... and realize that the black water valve hasn't yet been closed. 

i close everything out, let the water run down the driveway for a good twenty minutes with some dish soap liberally squeezed on the driveway for good measure. 

it's been an hour and it only smells like strong yet stale pee now if the wind kicks up.

TIFU Not checking the blackwater valve on a trailer