Took my 9 year old nephew and his eight year old mate, who's Mum was expecting a baby, to Pizza Express, then just sat back and listened to the conversation that went like this...
'I can't wait, especially if it's a boy, then I can play with him.'
'Yeah, you'll be big enough to pick him up!'
(really excited) 'Yeah! I can throw him on the sofa! (reflective pause) but we'll have to put a cushion on the back in case he cracks his head on a picture and breaks it.'
'yeah, just chuck him on the bed instead.'