Back in February, Stuart noticed Buddy had a minor limp.  We watched him for a couple of days and finally decided to take him in to see a vet before the weekend.  I got out from work earlier and asked Logan to accompany Buddy and I.  Later Stuart joined us as well as the vet was close to his bus stop.  The vet checked out Buddy and did not find any major issue, and just prescribed anti-inflammatory and suggested resting for 2 weeks.  We suspected the injury likely from him dashing down the staircase carelessly with his 95 lb body.  Thus we decided to stop him from going up staircase and hold walkies for 1-2 weeks as his rest.  But keeping this high energy Buddy running was definitely a chore.  Few days later the limp did seem to improve.  Over time, Buddy slowly returned back to his previous routine.