My baby rocks in his chair...chance of braindamage?

Stop worrying...your neighbour is just an old misery guts and wants to shut your baby up by scaremongering. Get a rug for under the rocker and let him rock. Rocking has theutic effects, releases natural endorphins that can relive pain and have a general feel good effect. I am willing to put money on the fact that your little chap is a happy baby that probably gets through teething easier than most.