It was my Grans 80th birthday today, so I was with her and my extended family today, my step mum and my 2 year old half brother included. My 15 year old actual-brother was absent.
I was standing with my Dad when a distant relative approached and said "So I hear you're expecting another little one then?! Congratulations!". My Dad looked at me all awkward and went "Oh yeah... well Josh doesn't actually know about that yet... Oops". Cheers, dad.