Had it happen once to me. My buddies and I were playing some night time paintball on some property one of them had. There were only 4 of us, 2 per team. My partner and I knew the property good enough that we figured they'd try and flank us on one side of a creek that was in there. So, we decided to seperate and go to opposing sides of the property, meet up in their "base" and attack them from behind. Well, I was waiting at their "base" for my partner, which was also next to the creek. It was dead quiet, no wind, no movement of any kind, and I hear footsteps in the water in the creek. I arrange myself so I can see down it for a pretty good distance. The sound stopped, no wripples in the water. I watched a little longer and heard the sound again. VERY distinct sound of someone walking through water! At the time of the sound, there were no wripples or people in the water! A few seconds later, my partner walked up behind me and said he never went close to the creek! I freaked out and said "let's get the f*** outta here." The other two guys were also dry when we met up with them, so they hadn't been in the water. That's the most freaked out I've ever been!