HI All, Need some advice on a incident with a odd colleague within the department. I started in a new school in September and she has been there for the last two years. Recently the school has had to make some cut backs and Ive been promoted since November as the second. Within the second week of starting the school,she started criticising the hod to me and every conversation has to be literally about her or what she does. She is unqualified and does struggle with the subject. And the hod and myself knew that shes untrustworthy as I have told the hod everything that she has said about him and the hod tells me exactly what she is like me. I will try and be vague but basically she accused me of being sexiest? She was being negative about the students in her classroom and how especially the girls do not still understand the theory, I said without thinking “I am not being sexitest but the girls will not get this type of topic first time and you need to cover it a few times.” in front of the students she started accusing me of being sexiest. I realised she took it seriously once she told me to get out of her room, being me I laughed it off and went to the hod to tell him that this is what happened and he didn't think much of it as she is known to be awkward, as he has had all sorts disagreements with her over the years. However afterwards the hod spoke to me and said shes going crazy over what ive said and advised me to not to say anything like that in front of her as it may be the case that she sees me as competition for the promotional role or because of her personality she might have thought I meant her but assured me to not even think and let It go as she might be in one of her funny moods. My plan is when i go back to act normal and minimise my conversation towards her.