wondering about this for a while. If ds (2 and 4 months )hits a child he has a sort of time out as a "punishment". We do exactly the same if he hits a child who has hit him first. I thought this made sense in terms of consistency ie we don't ever smack, but when he hits first I notice friends hardly ever discipline their child for retaliating.
ooh the ettiquette of blinking whacking is so annoying.