My DS is 8 months and gets into everything - he's quite active and always seems to want to crawl onto other babies heads/eat wires/have all the toys and although it's not his 'fault' I wondered if it is about the right time to start telling him 'no' when he does some of these things or if it's pointless? He's a happy smiley and sociable baby and he doesn't mean any harm when he's all over the other babies, but while some mum's aren't fussed I am sure some mums (and their babies) don't like it so I'm forever going after him and picking him up and putting him somewhere else. Short of putting him in a cage this approach isn't really working, so I wondered if I could teach him not to do it instead?