18 stupid things, how many have you done?

---------- 1. Insert the rice into the rice vat with your hands and insert it back and forth. 2. When there are stepped bricks in the ground, deliberately walk every grid one by one (you must not cross the boundary, but stay completely within the grid). 3. Use a mirror to reflect the sun and shine it back and forth. 4. Spread paper on the coin, and then trace it with a pencil to trace the shape. 5. After eating the chewing gum, wrap the candy wrapper back into its original square shape. 6. Walk on the shopping cart in the supermarket. 7. Post a note saying "I am **" behind the classmates. 8. Photograph others on the left and stand on the right of others. 9. Step on other people's shadows. 10. Throw or kick slippers at other people's doors. 11. When going down the stairs, sit on the handrail and slide down. 12. Walk in the opposite direction on the elevator. 13. Paint your nails with a highlighter. 14. When it rains, always turn the umbrella deliberately. 15. When there is no one at home, learn to dance/act/sing in front of the mirror. 16. When you see a dog on the street, pretend to be a cat and bark. When you see a cat, pretend to be a dog. 17. When it rains, pick up an umbrella and deliberately walk to the place where the rain is heavy. It feels good to listen to the sound of rain. 18. Play with the plastic film with many bubbles in the electronic packaging and pop the bubbles one by one. Haha, how many have you done? I have done 14...