I thought this would be a good place to get info on Chihuahuas! I have had dogs all my life (entering the senior citizen stage) & am to the point where I think a small breed would be better. Also, a short hair. I have 2 questions. The first is about the temperament with children. Is this breed definitely a no with a child under 5? This would be a controlled situation where they would not be alone together. Secondly, it's indicated that they're hard to housebreak. How hard? Thanks for any info.