I have a wonderfully engaging son whom people tend to love and we're priveledged he's ours , but his development has been a puzzle. He didn't walk until 26 months, speech began slowly at about 30 months, and while he loves interaction he has constant, ever-changing phases and obsessions. He's 4 this month and he has not the slightest awareness of danger and any reaction from us increases the likelihood of his doing something scary (running onto the road...,etc). He's very impulsive and readily distracted. He attends a wonderful nursery where he gets one on one attention. The Ed Psych puts him at around 2. I have a 10 month old daughter and a son nearly 6 (on the G&T register, interestingly) who are both very accepting of his behaviour - because although he's lovely, he can be very hard work and his behaviour quite impenetrable .