When my mother sees ants in the drinking water, she would throw the water away or take the ants out. I have also been taught (by religious teachers) it's a bad idea to drink water with ants in it, it makes you stupid or forgetful or something like that.
But it's such a bother. The ants around here are crazy, they find a jug of water, even a kettle of hot water, and soon you find them swimming in it.
Is there any basis for discarding water with ants in it? Or is it a superstition mistaken for religious practice?