Diffusing extreme hyper behaviour

[Brookville]

I have DS4.5 and DD3.5. When they are together the silliness gets completely out of hand all the time from 0700 until bed: shrieking, saying silly words and sentences, chucking pillows, bedding down the stairs. DS is the ring leader and WILL not listen to any requests to stop. Yesterday he tipped his entire sock drawer into the trampoline whilst I was cooking tea.
DD comes out of it straight ?away when separated but it's not possible to do this all the time and I want them playing together obviously.
Has anyone tried anything to stop this. I have tried getting him helping me but it doesn't always work. Could it be diet? He doesn't eat sugar in the day and I can't think what else could trigger its. Hormones?

[glowfrog]

What do you do when he refuses to stop his behaviour?

[Brookville]

Thanks for responding Glowfrog. With the trampoline issue I asked him to take his socks upstairs which he did. But he responds to my requests in a silly voice like, 'ok Mrs Hamburger' and doesn't register my annoyance or try and respect anyone's wish for calm/quiet. He is one step away from bouncing off the walls physically and verbally - singing, whooping constantly. But he gets lots of exercise and there's variety in his day - pre-school, childminder, playground etc
I do stay calm and firm. At the table if he's silly his food (what's left) gets taken away after 2 warnings. But he doesn't really care. It comes to an end eventually at bedtime (7pm thankfully) when they (thankfully) go to sleep in separate rooms.
No issues then, it's just the day that's exhausting. And summer holidays are approaching...

[Brookville]

Bump! Any experts out there?

[glowfrog]

So he only behaves like this at home, when he is with his sister? Not with the child-minder or pre-school? Is it possible that it's jealousy/attention-seeking?

[TigerFeat]

The only way I have found to deal with this is to join in for 5/10 minutes before I need to get something done.

So join in, have a hysterical time, engineer a wind down and redirect to a quieter activity with a promise that you'll do it again once you've finished what you need to do.

It's a ball ache, but it does seem to work.

[Brookville]

Interesting Tiger I will try that. Glowfrog, it does happen just at home or maybe with one other at preschool occasionally. I think it's definitely a release at the end of the day but hard to find a source at other times. He gets a lot of attention.

[glowfrog]

Then I think Tiger's advice is spot on. Sounds like it is attention-seeking - one on one attention, that is. I'm sure he must miss that and I don't think unfortunately that you can rationally measure the amount you give and how It's perceived by your DS.

Obviously you want your kids to be able to play together nicely but I think you may have to give a little one on one attention for a while. Am sure it won't last long.