My DS is 10 months in a couple of days. He's very strong standing on his feet but he's not cruising furniture or trying to walk yet. But in the last week, we've noticed he will be standing holding on to the sofa, walker or activity table, then he'll smirk, then let go and throw himself backwards which he finds it hilarious. He thinks it's a game now, as every time we stand him up he does it. Obviously we don't want to stop encouraging him to stand, but now he's go this dare devil trait or something we don't want him to hurt himself. We are trying to make him understand that it's not ok to do, by not laughing along with him and say 'No, you don't do that' in a firmer tone but don't think its working. I tried putting pillows behind him but if anything that encourages him more as he loves the soft landing.
Anyone else experienced this and/or has any advice?