I suspect that McGonagall was very forthcoming with her opinions about Cornelius Fudge’s decisions over his tenure as Minister. The addition of a Permanant Sticking charm and a strange hex that made the frames fly over to the nearest blank space on the wall and firmly attach soon became Cornelius Fudge’s worst nightmare. 

(After all, having twenty different needlepoint frames scattered across the Minister’s Office with ‘Cornelius, You Gormless Twit’ and ‘Fudge the Nincompoop’ in intricate embroidery didn’t exactly inspire confidence in his leadership.)