Ds1 (5) and DS2 (3) play a lot of physical games with each other which invariably end in DS2 in tears as DS1 will accidentally hurt him in some way - having seen a couple of these accidents over the last few days, they are genuine accidents (such as this evening, they were both bouncing on my bed and DS1 kicked DS2 in the face). Unfortunately for Ds2, he is not the most physical agile of children whereas Ds1 is very active and sporty which I don't think helps.
However, I know that Ds1 is not doing it deliberately but not sure how I can get him to stop - it is usually due to giddiness that just goes that step too far.
It seems mean to punish him and he is genuinely sorry afterwards - but it is happening more regularly now and poor DS2 must feel like a punchbag 