Learn a lesson from me.
My DS is 20 months and likes to feed and run. I sit with my top up, bra off in the privacy of my living room and mumsnet on my laptop while he feeds intermittently.
He has just run over and shut the laptop with a slam, catching my nipple between the casing.
Ow. It really, really hurts.
I wonder if I am the first person to catch a nipple in a MacBook Pro?