My Brother's Dog

The moment I opened the gate, he rushed out and did not want to come in as directed. So I locked him out and when he came back, he could not come in. He barked at the lock and wanted to come in. I refused to let him in. He sat there for a hour. I thought he had learned and would obey instruction.
But the next day, he still repeated the same thing. I locked him out again. After repeating five times, I realised that he had no much memory.