I have a 2 year old Golden Retriever. Every month I squeeze a small amount of Frontline tick & flea on to the back of her neck but it creates a peculiar reaction in her. She seems to sense what I am going to do before I get anywhere near to her and after I have given it she will not come anywhere near me for hours. She won’t touch her food or come into the same room as me and yet both these things are quite out of character. Has anybody else experienced this? I am coming to dread this monthly upset.