I share a birthday with a friend of mine. Bizarrely, I've had crushes on two people who I've shared birthdays with.
My mum has a half brother who has the same name as my dad. Their wedding anniversary is the same day as his birthday. (not the same year!)
My dad is 3 years and one day older than my mum. My brother's birthday is 3 days before my dad's birthday.
One of my parents dogs was born the day afer their wedding anniversary.