DS is a big strong 15 month old, on the 98th percentile. He's not yet walking but is very much becoming a toddler in every other way - very keen to explore, test boundaries etc. He does understand "no" but doesn't necessarily obey, which is pretty typical I think.
The main problem I have is that he likes to hit, scratch, bite and pinch - me, DH, other children, even the poor dog if he gets a chance (thank goodness she is very gentle, but I never leave them alone together). It's not done in anger but for fun - he cackles with laughter while he's doing it, absolutely full of glee, and no matter how often I say "no, you don't bite!" etc it seems to make no difference. If he does it to me, my usual approach is to say "No!" loudly, and if he persists to put him down and turn my back in him, which occasionally bothers him, but usually he just crawls off and finds something else to do, and obviously it's not always practical in a public place.
Any tips for managing this stage? Feeling quite sore with scratch marks in my cheek after this morning!