My mum is currently staying with me. She takes offence at the slightest thing. Just now I realised she had left the tap running and asked her to try to remember to turn it off (she's done this before). She's had a massive strop and said she won't come again since she "does so much wrong" and is currently ignoring me. She is looking after DD whilst I work and I am Really grateful - I dash home to cook dinner and am not asking her to lift a finger other than minding DD. She is quite forgetful now and I wonder if this reaction is because it frightens her.