With few exceptions, Duggar children usually marry young and start having children almost immediately after getting hitched.
The main reason for this is that Jim Bob and Michelle's offspring are taught from a young age that they were put on this planet to do two things, and the things only -- worship and make babies.
But lately, fans have noticed something strange about the two main Duggar pastimes.
It seems the more the adult Duggar children have been devoting more of their attention to the latter, and less to the former.
Obviously, we have no idea how much time on these people are spending on their knees in the bedroom.
(We're talking about praying! Get your mind out of the gutter!)
But thanks to the Duggars' tendency to over-share on social media, we have a pretty good idea of how much time they spend in church.
And as hard as it is to envision a Duggar skipping Sunday services, it seems that's exactly what they've been doing lately.
First, it was reported that John David Duggar has been skipping church ever since he began courting Abbie Burnett.
Now, it seems other coupled-up Duggars are following in John David's footsteps.
“They’re always missing from church when they’ve started dating,” a source close to the family tells Radar Online.
Now, it's possible that the Duggars who are in relationships have simply decided to attend services at their partners' church.
But even if that's the case, Jim Bob would likely view the decision as a betrayal.
He's previously stated that he believes worshipping is the most important thing a family can do together.
And the Duggars are famous for their elaborate Sunday ritual.
They usually arrive at church early so that they be there to greet the other parishioners.
Afterward, the whole community gathers at the Duggar compound for a “pot-faith” luncheon.
“Because Jim Bob doesn’t believe in luck,” says the source.
Yeesh. That alone would be reason enough for his kids to skip out on the whole thing.
But as lame as they probably find their father's extreme piety, the Duggar kids would likely be hesitant to stop attending services with Jim Bob -- unless they hoped to send him a message.
Reports of Duggar kids rebelling against Jim Bob's overbearing ways have been everywhere lately, and it seems they may have decided as a group to take action in hopes of making it clear just how strongly they feel.
It's a risky gambit.
And it could lead to the unraveling of the Duggar clan as we know it.
Watch Counting On online for more on reality TV's most controversial family.