Mum had only just turned 16 when I was born and Dad was almost 17. He was at the movies with his mates and was highly embarassed as his Mum got them to stop the movie so she could go in to find him. I was already born by that stage but he wasnt a happy chappy about it.
He did manage to make it to my brothers and sisters births though.

My hubby missed our third sons as he was out having a smoke!!! I had been slowly labouring for ages after been induced and he was starting to get on my wick. I was only about 5cm when he said im going out for a quick smoke. I was quite happy for him to go, and as soon as he did I had two massive painful contractions and said to my midwife I need to push.
Three big pushes later and ds pops out. hubby came in just in time to cut the cord and I have never let him live it down.
Lucky he has given up smoking now so was there for Scouts birth and fingers crossed he had better be there for this one!