a couple of flights come to mind.
A few years ago travelling from Belfast to Bristol on Go, it started badly. The gate agent called the first (or last rows) then forgot to call anyone else. Eventually everyone realised that she had forgotten, so wandered out.
Safety briefing was performed by the cabin crew, who were also trying to hold on as the captain teared around the airport taxiways. Captain eventually came on after takeoff apologising for the rushed takeoff. He was rather rude about the passenger agent!
It was a bumpy flight - and as we could see the runway approaching for landing the plane went back up. Captain blamed the airport ILS system for shutting down, and we went around to come back in from the other direction for a firm landing. Coming out of the airplane it was very windy, had to brace to stay upright.
Also a couple of years ago coming into London City in poor weather resulted in a definite firm landing, followed by what seemed like lurches in either direction, felt like we were skidding, although I suspect that is unlikely. It is a short runway so I guess most landings will be rather rushed.