Whenever I take one horse to work, 2nd one runs completely crazy and just keep running-running-running. The one taken outside doesn't seem to be care much. It happens with both of them, however paint is much worse, and she's ALL wet when I come back with qh (although qh was all wet too this week once). Is there anything I can do to stop that? Fresh hay doesn't seem to help much at this point to keep the horse occupied.