Dogs are smart. So I get a idea to let my dog learn to fetch me a pier of slippers. If it can fetch me a pier of slippers, then I will give it a biscuit for its bonus.
The next day. I returned home from school. I saw my dog are fetched me a pier of slippers successfully, I was very surprise and I gave it a biscuit for it bonus. After that, I changed my clothes and did my homework. After a while, I felt my dogs were busy for something, then I took a look.