I recall a rumour that Dan Air had a 727 taxi out on two, and forgot to start the middle engine when cleared for takeoff.
Also Laker did the same in a DC10.
Both aircraft rang all the noise abatement bells and Atc observed a lower than normal climb profile!
Also a Cathay 707 on taxi in, at night, in Tiwan was told to stop by Atc, the new that day sops, required two inboard engines to be shutdown after clearing the runway, this all occured together, the cabin crew threw open the doors and 6 in a rush passengers took the big step and hit the ground at rather a fast rate of descent.
The Cathay Captain under line check asked the check captain "What does the new procedure say about this one then?
Change is not always an improvement.