Two is plenty. I think we are right on the cusp of the fighting starting. The wee one is starting to show a wee bit of interest in shoving/striking the big one back when she is throwing her weight about. Part of me is pleased about that, but it will escalate.
Plus, having got past the colic, the night feeds, the weaning amd the still very fresh last batch of 12 months jags twice now, I know I dont have the patience to go back to the start a third time.
Firing pin removed please.