Byron takes one of his classmate’s notebooks and rips it. Pr…

Byron takes one of his classmate’s notebooks and rips it. Principal Skinner takes Byron’s skateboard and confiscates it. The same sequence of events happens the next day. Byron’s frequency of ripping notebooks decreases over the next few days. This is an example of:

Michael bites his wrist at a very high rate causing signific…

Michael bites his wrist at a very high rate causing significant tissue damage.  Using various assessment techniques his behavior analyst concludes that Michael bites himself at the highest rate whenever he is alone and that he likes the way it feels.  Michael’s biting his wrist behavior is most likely maintained by: