oh for the love of god please help me! my son is 17 months old, can be a little bit stressy at times but im worried as he's been banging his head in these "tantrums" most of the time i join in a tantrum behaviour and he laughs at me and stops but a) i dont fancy bashing my head and b) on this one thing it seems to encourage him if i do! wondering what i can do, if i ignore him he does it harder, if i pay attention im rewarding him if i join in im encouraging him and hurting myself! ahhhh! advise please!