I have 3 children and am a childminder so have experience with lots of toddlers - but my own 3rd child is very challenging. she is 2 in a few weeks time. some examples being - she never sits still - she never eats a meal properly its always throwing food, utensils, drinks - squashing the food and wiping it everywhere (since weaning) - she hits, pushes and scratches (was just me, but now started on other children) - she cannot leave anything alone, - strong willed and will not stop doing something when told (even if in danger). - she constantly takes risks, climbing and jumping from high places - she will go into a screaming rage quickly and hit/scratch. - she cannot maintain attention and sometimes you can be calling her/talking to her and it's like your not there. - still waking through the night and the more you try to soothe her or keep her quiet the louder she gets - shouting no. she probably just sounds like a normal toddler - but I have never had to deal with any behaviour like this before. her speech is really good so she's not frustrated though not being able to communicate. I actually find her very difficult and hard to care for. and I do that for a living!