According to most Rapture theorists, when the Rapture comes, only people get called by Jesus - their pets, no matter how dedicated to their owners, get Left Behind.
So, what do you do if you have a beloved pet, but you’re pretty sure that when the Rapture comes, you’re there? Do you leave your pet to fend for itself, in the chaos of the post-Rapture eeevilness? How can you think of little Fido being exposed to all that moral instability?
Why, you call up the local franchise of friendly atheists who have started a business to look after un-Raptured pets. After all, as atheists, they know that they’ll definitely be left behind:
Only hitch - you have to pay them in advance.