T-Rex: There's an average life expectancy for people born when and where you were! Look it up and you'll know how long the Average You will live!
T-Rex: GOOD THING I'M NOT AVERAGE, baby!!
Dromiceiomimus: Pfft. Death's old hat, T-Rex! Birth is where it's at.
T-Rex: MAN, I already know I got born. I even have the date!
Dromiceiomimus: But there's also an average period between fertilization and birth/hatching, and people will readily discuss how much a baby is "early" or "late" in regards to this average! So do you want to know... THE EXACT DAY YOU WERE CONCEIVED??
T-Rex: Oh my gosh!! I could calculate this, right?
Utahraptor: Trivially!
Utahraptor: But be warned: once you know the exact day your parents boinked you into existence, there's no going back. You'll notice the anniversary every year and you'll wonder if you should be celebrating it. Is a gift for your parents appropriate?
Utahraptor: Perhaps quiet contemplation is the correct response?
Narrator: LATER:
T-Rex: Hey mom, I made you some cookies!
Off panel: Awww, sweetie! Thank you! But what are they for?
T-Rex: MOM
T-Rex: I DON'T WANT TO TALK ABOUT IT