A beautiful Golden Retriever was sitting on a balcony on the 4th floor of an apartment complex when a Boxer trotted along. He called up to the Retriever, "Hey! Want to come out and play?"
"I can't," the Retriever replied. "I have to guard the house for my humans. They went away for a couple of hours, and I promised I'd stay here."
"Aw, come on!" the Boxer said. "They won't notice. We can even stay in the yard if you want."
"No, I really can't," said the Retriever. "The door is locked. I wouldn't be able to get out."
The Boxer said, "Why don't you just jump off the balcony then?"
"And end up with a face like yours?" said the Retriever. "I don't think so!"