we have 2 kids aged 3 and 7 at home aswell as my 4 yo dgs who we've been looking after for the past year due to my dd's mental health issues. My dgs is a very difficult child to handle, my dp is'nt his dgf and i think has been struggling to cope with my dgs behaviour. Anyway tonight after tea my ds and dgs were playing when my dgs hit my ds in the face with a toy. My dp took the toy off him, broke it and put it it in the bin! I'm really annoyed that he did this. My dp has had anger management about 5 years ago, which did help for a while but he still has a very quick temper. Just wondering if i am overreacting or not.