I would not have believed it! I was hand feeding my new mother Maggie. She was standing up in her whelping box and the three week old boys walked over to her and started nursing. All of a sudden, one of the boys walked away from nursing and crawled over to the piddle pad I put in half of the box and PEED!!!!! Even Maggie looked down like WTH???? WOW! What a little smartie! I mean 3 weeks old!