Not to be confused with the reality show, Celebrity Rehab, Bo is not some washed-up, has-been who is addicted to drugs, alcohol, or sex (though he does like to hump the kitties; I would classify that as a fetish, but not an addiction). His therapy was prescribed so that he could increase his physical activity with little impact on his arthritic joints.
After his strenuous 5-minute walk, the doc said he should rest and stretch tonight. This is how he looked on the way home.....