You be the judge: should my housemate stop warming her mug and then pouring the water back into the kettle?

Brent thinks Amy’s habit is unhygienic, but she says his argument doesn’t hold water. Trouble’s brewing – and you decide who’s in the right• Find out how to get a disagreement settled or become a jurorAmy says that boiling water kills germs so it’s hygienic, but one time I found...