Ever sat at the back of a Vanguard?

My memories of that was like a dog wagging it's tail, a kind of side to side movement which, as a 8 year old lad was somewhat disconcerting. I was informed that it was supposed to do this movement - it was the way it was designed.

I seem to recall also that the 757 also had a sideways wobble motion towards the rear of CE.

But luckily my days of being right down the back are over for now. And nothing, I say nothing, beats being on the UD of a 747.