In the car the other day I was telling a story to my husband and I said any couple that can get through a family holiday without killing each other can get through any thing! He immediately told me off and not to use that phrase in front of the children. He said it isn't nice for the children to hear the word kill in that context and not to say that again.
I was take aback as I am sure it is a common phrase which I'm sure remember hearing when I was a child, even from my school teachers, so I'm surprised at his reaction. It's no trouble for me not to use that phrase anymore so I won't, but is his reaction justified?