Theoretically, what goes up, should come down. This is the backbone of the toilet seat issue. It is most courteous to always put the seat down after lifting it for use. Gentlemen, I’m speaking to you because women have no use for a toilet seat in the up position.
I frequently hear men saying, “Why do I always have to remember to put the seat down? Why can’t she remember to put it up for me?”
The question at hand comes down to a safety issue. Take this story a male friend shared with me into consideration.
During his regular routine of getting ready for bed, he left the toilet seat up. In the middle of the night, his wife had a desperate urge to make a run to the bathroom. Getting there in the nick of time, she sat down on the rim of the toilet seat. Losing her balance, she fell into the bowl and hit her head on the tank. The tank lid fell to the floor shattering pieces of porcelain all over the bathroom. She broke her back and my friend had to get stitches in his feet after cutting them on the broken pieces of porcelain as he assisted her.
The lesson to be learned: To maintain a happy and healthy relationship, put the toilet seat down.