Just close it entirely before you flush, people. The fact that there’s a debate between fully open and half-open when both are inferior is baffling.

Counter point: I know plenty of people who close the lid and then flush, then leave. So when you open the toilet you’re greeted by a floater or shit streaks over the bowl.

I flush with it open, check if it’s clean (otherwise use the brush and flush again) then leave.

If you want to close the lid you’d have to close it, flush, open it and check, clean, close it again. Are you doing that?

Counterpoint, if you leave the lid open, you’re flinging shit particles all over the bathroom, potentially onto toothbrushes.

That was tested with Mythbusters. When your toothbrush is nearby there was hardly a difference if you flush open or closed, sorry :)

Source?

I’m pretty sure you’re misremembering that episode. It didn’t involve lid closed vs open.

I could have sworn they tested both. I remember them concluding that lid position didn’t matter.