I'm walking down the road by work behind three young men dressed in 'sharp suits'. One answers his mobile phone.
'Alright mate' (over the top cockney accent to rival Dick Van Dyke in Mary Poppins) 'So what is it - boy or a girl?'
Brief pause while person at other end answers the question
'Go on my son, back of the onion bag!'
Unfortunately, they then went a different way from me so I never found out with that indicated a boy or a girl.