Make sure you have a small area and a storage chest and a music player or TV. Make sure the area is like a room (no gaps) use fences to start. Example:

When it comes to re-enforcement here is what to praise:
Bucking: This will be extremely helpful as it helps with boredom and stress
basic needs: (Eating food/Grabing Toys and sleeping)
Hoard objects: Same thing as Bucking
Watching TV: same as previous
Flying: same as previous
IMPORTANT: Anxiety Rest: This helps reset Anxiety levels which is very useful for un-pettable dogs. It's hard to spot but if your dog randomly stops stressing. Praise them and see if it was anxiety rest!

How do I praise a dog?
Click on that dog and select praise.

1. Re-enforcement can help greatly with a dogs offspring! Its best to re-enforce when they're puppies
When a parent with re-enforcement has offspring the offspring are more likely to know what to do example: If you positvley re-enforced the parent for eating. The offspring are more likely to eat without asking.
2. Unpettable legless dogs will need to learn about playing with toys and bucking since petting will anger them once they get stressed.

That is most of what you should know about raise legless dogs!
I made this in joy and a whole heart welcome for my long awaited dog.
Prince Stuffy!