The reason I’m hesitant to recommend this is that your dog might not learn anything positive from it.  It seems to me like you just want to make him feel bad.  If you only want to teach your dog a lesson, then I would advise against a newspaper.
assistant
Alright, are you looking for some other ideas, or do you want to go ahead and use a newspaper?
assistant
how do i punish my dog for pooping inside?
user
If you want to punish your dog for pooping inside, there are some things you might be able to do.  You could tell him that you’re disappointed, and give him a time out.  You could also give him an after-dinner treat if you want to reward him for doing better.
assistant
how about using a newspaper
user
That’s an interesting idea.  A newspaper might work in some cases.
assistant
anything else, i just want to flick them a bit
user