T-Rex: If rain didn't happen people would FREAK OUT the first time they saw it! They'd be all -

T-Rex: THE AIR HAS BECOME A HEAVILY DISPERSED LAKE!?

T-Rex: Okay, they probably wouldn't say THAT, but the fact remains it's water FALLING FROM THE SKY and we all act like it's normal.
Dromiceiomimus: Hail would probably freak them out even more. Oh, or lightning!
T-Rex: But even RAIN would be freaky! ANYTHING falling from the sky is weird, and we just accept it because we grew up with it!

Utahraptor: There's only one way to settle this question for sure!
T-Rex: Are you thinking what I am??

T-Rex: PRODUCING A CHILD AND THEN RAISING THEM FROM BIRTH IN A CONTROLLED ENVIRONMENT IN WHICH ANY MENTION OF RAIN IS AVOIDED WHILE ALSO NEVER BRINGING THEM OUTSIDE ON A DAY IN WHICH ANY FORM OF PRECIPITATION IS EITHER EXPECTED OR SEEN!
Utahraptor: No

T-Rex: Really thought you and I were going to say the same extremely long sentence at the same time there, dude.
Off panel: Interesting! But if I may be permitted to reiterate:
Off panel: No