if I had a dollar for every person who said that..."oh we're just doing it once and we have people who just love our dogs and want a puppy" then bam the pups are here and mysteriously all or most of the people who wanted puppies are nowhere to be found and your stick with 8 or so puppies and you just cant possibly care for them and your desperate to find homes for them....etc. etc...

http://justonelitter.com/litter.html

http://www.huntington-indiana.com/hu...one_litter.htm

http://st15.startlogic.com/~justonel/breeder.html

http://www.woodhavenlabs.com/justonelitter.html

http://www.armbcr.org/bcrescue/Just1Litter.htm