The reason you should close the toilet lid when you flush!
It's very important to close the toilet lid when you flush. Why? These are the reasons:
Flushing toilet can send a cloud of little particles containing faecal matter into the air
If you leave the lid up when you flush, those germs can float around your bathroom, landing on any available surface, including towels, hairbrushes or even toothbrushes. These germs can contain Salmonella and other dangerous nasties, and can actually survive on surfaces for weeks or even months
A toddler or baby can topple into an open toilet headfirst and drown
The fine droplets of water can corrode stainless steel items such as towel radiators
Even if your toilet isn't situated in your bathroom, you can breathe in these particles when the toilet is flushing, or on returning to the toilet at a later time
Do you need any more reasons to start doing this today? I think not!