Help! My 10m old has turned into a toddler

[sleepdeprivedby2]

My 10 month old DS has turned into a toddler. He has been cruising since 7 months and if he is somewhere he shouldn't then we tell him 'No' twice before moving him. Just recently he has started replying to this by smirking and saying 'YES' and he then has a screaming fit when we move him.
Other behaviour includes,

• screaming if I get his DD (aged 3) down from the table before him.
• screaming all through any nappy changes or getting dressed.
• Being deliberately naughty to steal attention away from DD and then grinning when he is being told off.

I realise he has probably learnt this behaviour from DD but ignoring it doesn't appear to be working and I am at a complete loss as to how to deal with it.

my dd1 and ds were(are) like this! Hard work when they are full of energy and walking at 10 months.

BUT they do not do it deliberately. They just want to have fun, and be entertained, and crying is their only way of communication.

It gets easier, it helps to be firm and consistant.

Thanks Belgo. I just didn't expect such extreme behaviour this young. He is a stubbon determined little fellow. He took his first steps yesterday, so I am hoping that when he can walk he may stop getting quite so frustrated with life. I can dream can't I.

So is just ignoring the bad and praising the good the best policy or are there any better alternatives seeing as he is so little.

He sounds bloody intelligent. My 15 month old cant even say yes yet

anyone

I agree with Monkeyfacegrace,it sounds like you have got one smart cookie there. He seems to be intellectually way ahead of his chronological age. To be able to say 'yes' at 10mths, and to know it is the opposite of no and to smirk! - pure genius. I would try to avoid saying 'no' to him. It never works well saying no to toddlers - it seems to be a word they pick up really easily and then say back to you when you want them to do something. I would just move him away from wherever it is he shouldn't be and at the same time distract his interest towards a different fun activity.
As far as getting down from the table goes, couldn't they get down from the table at the same time. Being bright he probably gets bored pretty quickly and he must get really frustrated seeing your DD playing while he is stuck in a highchair.
Nappies and dressing - two ways to go here - either do it as fast as poss. and shut your ears to the screams or take your time over it and play games while you are doing it - This little piggy, Round and round the garden, etc.
Being naughty to get attention - this is the behaviour to ignore - if you give him any attention at all, even telling him off, you are rewarding his behaviour and you will perpetuate it. If it is unignorable, ie dangerous or he is breaking something, move him, or whatever, to a safe place with the minimum of interaction - don't say anything or make eye-contact.
If you have a gifted child, which it sounds like you might have, he is going to keep you on your toes. You will have to keep him busy with loads of mental stimulation or he will get bored and be naughty.
Hope this helps - I seem to have gone on a bit.