My in laws have a large house and only one smoke alarm downstairs near the kitchen. I have an anxiety about fires and we are going to be staying with them for a week. I have a two year old child. They are refusing to put up a second smoke alarm upstairs as it isn't visually pleasing and ruins the decor. Besides , they are not smokers and have an electrical safety certificate so they dont need one. My husband is not backing me on this and thinks I am over reacting. I am trying to insist that a second one is installed and they are saying they will put one up with bluetack and take it down when I leave. Am I mad or are they?