I really do not like spending any time with my brother at all.

He's a few years older than me at 38.

Today at my parents (we haven't seen each other in about 3 weeks) he arrives and just barges past me in the kitchen purposely pushing me into the wall. When he walks back towards me he flicks his hand out to my face as if to hit me then flicks it back behind his head to imply he's fixing his hair. He laughs as I always flinch as he used to beat me when we were young.

I was playing with my kids and nephew (his son) and he comes barging in again and just messes up our game and turns on the TV and puts it up loud.

I get the kids together and we leave. I tell my parents I'm leaving because of him and my says 'well he's your brother'

Eugh.

Any advice to stop me totally lashing out at him next time?

How can I handle this behaviour