PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Flight Crew Flight Instructor; Flight Crew Commercial; Flight Crew Instrument
Flight Crew Total 1300
Situational Awareness; Training / Qualification
Conflict Ground Conflict; Critical; Ground Event / Encounter Loss Of Aircraft Control; Ground Event / Encounter Object
Aircraft Aircraft Damaged; Flight Crew Took Evasive Action
Human Factors
Taxiing back to the hangar at ZZZ after a training flight with a student. As we turned onto Taxiway H; I saw Pilot Y attempting to start his recently purchased BE23. It was parked at the tie downs and facing the X Hangars. I taxied past him and commenced to make a U Turn back to our hangar. As I was taxiing slowly in front of hangar X-E; I saw and heard the BE23 start up and rev up to very high RPM. I thought that was out of the ordinary. I then saw the plane start to come directly at us while picking up speed. Seeing Pilot Y's face; I could tell that he was not in control of his aircraft. I quickly increased throttle and was able to get out of his way as he impacted hangar X-E. I re-positioned my plane and shut down. We were not impacted by the BE23. I exited the plane and walked over to check on Pilot Y. He was uninjured and walked out of the aircraft.
GA flight instructor reported a ground conflict during taxi in as a BE23 pilot lost control of the aircraft during rev up in the hangar area.  The flight instructor took evasive action while the BE23 impacted a hangar.