Played a lot of one-on-one basketball with my lad over summer. The only way that I could beat him was to resort to dirty tactics*. He knows this, so takes it in the right spirit.
Also, at Karate he spars with the adults. He may be the same height as some of them but he’s half the weight, so he gets dumped on his ass quite a lot. The time will come soon though when one or two of the smaller adults are going to get a slap. I’m still quite a bit bigger than him, so I think I’ve got 3 years or so before he puts me down… by which time he’ll be a Black Belt if he sticks at it.
My daughter is two years younger but the same grade and already fights above her weight. She’s not got the reach to trouble anyone yet, but it will come. She’s got more aggression too, so will be a right handful!
*Like the PE Teacher in Kes.