Had a few, last was about 6-7 years ago on AF coming into LHR. Remember the intense power increase about 2-3 seconds from touch down followed by the steepest climb and righ-hand bank turn I've ever experienced in a pax aircraft.

No announcement made by any crew member for a few minutes which did unnerve a few pax, all wondering what was happening. IIRC, was simply a runway incursion