Have been volunteering in a hospital for a while now as I try to change career. A few times the woman who does the lunches has blamed a mistake on me. First time says you gave the wrong lunch, I said I absolutely did not. She had no proof. Second time she had clearly given out a wrong lunch but I heard her saying quietly to nurse ‘I told her not to give it out but she did.’ Third time another member of staff asked me a question which I must have misunderstood. Domestic woman got cross and said to him ‘I asked you…’he said ‘no it was her’ (me). She was visibly cross/ annoyed. Most of the time they are nice as pie and she goes out of her way to give me a free sandwich etc. Not sure how to handle this. Am a full time student and definitely don’t want any drama, volunteering is just to add some experience. Feeling uncomfortable about it. Any thoughts? I have noticed the staff are very quick to blame each other/ get annoyed about mistakes.