* Imagine there is a box and you find something in it ( a snake or anything else unusual.
* You need to go and call someone to help you about it. It should be said out loud: "I'll go and call a policeman / neighbour / doctor.,,"
* Discuss what to do with the thing, what's it doing, what happens etc.
* The person you called for help decides to go and call someone else. Now you need to find a reason to leave, i.e. "Oh, I need to go and see my sick granny..."