Hi mumsnetters, newbie here lol. I have been asked by SIL to take her daughter Christmas day, as my bro and her are going away. I refused as its my daughters first christmas. Andwant to enjoy it with her anf my DH. Her daughter is very clingy and prone to tantrums. I refused in a very polite way, saying that its our first christmas as a family and I want to spend it with my DH and baby. My SIL is now saying that I am abandoning my niece because I havea child of my own now. That is not the case. AIBU to not want to babysit.