The Bag on The Teacher Desk

Yesterday, when I came into the classroom and put bag on my desk. Then, I went out of the classroom while I took attendance in the office. And I came back to the classroom my bag began moving that which was on my desk suddenly move on the floor. Turn out in my bag there were two little white mice and a cockroach. Both little white mice and a cockroach moved inside the bag to get out. I didn’t know if two little white mice either could get out or not.