Big Bang Problem

And bathtubs? I know toilets have ports to direct the water in a certain direction of swirl, but how would bathtubs do this?I've never heard the toilet version of this story, only the bathtub version. EvC Forum has members scattered about the globe, so we should be able to put to rest once and for all whether this is myth or not. Everybody run some water in a bathtub with the drain closed. Once the water is quiet, open the drain. Report here which direction the water swirls down the drain, and whether you're northern or southern hemisphere. Equator and near-equator residents needn't bother. Drop a piece of thread or something in the water and watch it go down the drain to be sure you've observed the direction correctly.--Percy