Fishtailing on the takeoff run is a rare but occasional phenomenon. My most marked experience of it was on a BA 747, dry runway, taking off at Heathrow, where it was really shaking the pots in the rear galley; never before or since on that aircraft - and never on an A320, which I think was the original question. In theory the handling pilot could do it with the steering pedals but I doubt they would be that clumsy. It seems to be some harmonic between the crosswind against the tail and the compensating steering the pilots are making.