I have been taking care of some rescued horses. They are housed in a barn for the majority of the day. They get 30 minute turn out and 1 or 2 hand walks a day. A few of them are picking up some bad habits which i believe are stress and boredom related. They are malnourished so are on monitored feed. They are not allowed food treats yet. What else can I do to relieve boredom? They get lots of human attention, but we cant pay attention to them all day.