I'm pretty sure I could win the most awkward family photo here:
According to the Birth Order book I recently read (I'll blog about it at some point), middle children end up being the most well adjusted adults. They are the least likely to need therapy and make the best spouses (I should know - I'm married to one!). So precious middle child Liam, one day when your brother-in-law is complaining about your princess sister and your sister-in-law is wondering aloud why your big brother is such a perfectionist, you and your wife can sit back and just smile in bliss.
Love you my middle child!