Hi creamegg, where were you sitting? It can get a bit bouncy down the back of a 757 in weather.
As a bona fide amateur, I would cautiously suggest that the airframe has a tolerance for turbulence way beyond what you probably encountered.
Only once did I sit through turbulence bad enough to register (in my mind) as abnormal. They stopped the meal service but had already stuck my tray down. Incredibly bouncy climbout all the way up to our cruising level. In the meantime I was faced with BA afternoon tea, scones, jam and clotted cream
I couldn't even look at it.
Rodda's clotted cream as well - very sad.
I couldn't even hold my glass still and my arm was bouncing up and down like a cheerleader, totally out of control; champers in mid-air; never saw anything like it before or since.
My point is, even in this extremity, the crew were utterly, totally, 100% unperturbed.
Ever since that day, I have a new yardstick, and the whole thing doesn't even bother me.