From the episode "Premiere" after the kids have accidentally walked in on the parents...well you know
Paul: You could have knocked.
Kerry: It's seven in the morning. I thought you couldn't do anything until you had your first cup of coffee.
Bridget: Yeah, there's already one baby. What are you trying to do, make twins?
Kerry: Yeah, that's how it happens (!)
Was Kerry being sarcastic by that last remark?
In one episode "Pauland" his family is invited to a famous athlete's house for dinner so he can write a book about him when he's talking about how he'll rent a suit, Kerry and Bridget run down the stairs as Bridget gives Kerry a wedgie. Paul's response?
Paul: Can you rent kids?
In one episode, Bridget, Kerry, and EVEN C.J. calls Grandpa Jim whenever they get scared.
[A scary-looking guy stares at her/them/him and bought something for her/them/him.]