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Q: My 4-month-old blue heeler puppy is crate-trained perfectly. He always pees and poops when he’s outside. Then he comes inside and pees on the floor every 20 or 30 minutes. He eats fine and doesn’t drink excessively, but it’s as if he’s doing it on purpose. He’s completed obedience class with flying colors. I lived in New Mexico for years and am now in Louisiana, but I remember your on-point answers.

Dr. Nichol: Aw shucks. Your adolescent heeler’s brain is the most complex organ in his body. He’s very good at learning obedience skills, but there are different neural pathways upstairs that are involved with behavior problems. The real cause of all this mayhem may actually reside in a different organ system.