so I was sailing north in GTA sa in intention of reaching the end of the game world.probably wasted some few minutes. it started to get boring. so I just decided to stop In the middle of the ocean. I jumped out of my boat,swimming here and there.............when I faced back to my boat it started to move away from me.'''not like it started to sail it self''' like something was hitting it from underwater,I checked but nothing was there. could be something invisible?