How would you implement an extinction procedure in the following:

1. Problem behavior: A 6-year-old child runs into the street and refuses to leave the street.

Reinforcing Consequence: A parent goes to the child and picks them up and carries them.

1. Problem behavior: A child with autism pours his milk into his lunch tray to make bubbles with a straw. Reinforcing consequence: The behavior produces sensory stimulation.

1. Problem behavior: A grade school student constantly hits a classmate.

Reinforcing consequence: The other students laugh when the child gets upset.