My 18mo ds is generally a really lovely, cuddly boy. He's always been very active, was walking at 11 months and since then has been like a whirlwind around the house, why walk when you can run right?!
We childproofed the house as soon as he was active but there are things that he wants to climb on/play with that we just can't move ie toilets, ovens, tables and chairs. He now spends a lot of the time trying to climb on furniture and constantly touching the oven. Our original method of dealing with this was to say a firm and gentle NO and take him away. I thought if we said it enough times he would learn
My problem now is at the age of 18 months I'm sure he can understand that he's not allowed to do certain things... The gentle nos aren't working, I don't know what to try now. I know he's still very young and I'm not expecting him in any way to be perfectly behaved! But the problem is all the things he wants to do are dangerous and I have to make him understand that he can't.
His speech development is not particularly fast, he says mamma and dadda but not really to us, more just words that apply to anything. But he can understand a lot of what we say, can point to body parts and bring you his teddy when you ask him to etc. Do you 'tell off' an 18month old? Or is that futile? On the occasions when I've lost patience and shouted at him he's just looked confused and carried on doing it. Please, any suggestions? We've reached the point where I can't even go to the loo anymore as when I come back he will have climbed on the coffee table.. He has fallen off a couple of time and hurt himself 
Sorry for the long post - any advice gratefully received!