Is it possible to breed a pappa poodle with one of its pups?

Question
    Is it possible to breed a pappa poodle with one of it's pups?
I heard this causes all kinds of problems..true?

Answer
You can breed any intact male with any intact female in season.  The more closely related, the more likely undesirable recessive traits will show up in the pups.  Even a neutered male may mate with a female in season.  It will not produce any puppies, but may produce infections.  

For a more authoritative discussion of this and other breeding questions, see the breeding pages on www.akc.org.