in the box blind i noticed grass moving, then i heard limbs breaking sounding like small trees. I thought it was a huge buck so i waited a while and then rattled. no response, so i waited 30 mins and did it again, still nothing. get off the stand close to dark and starting walking out on the other side of the brush where i heard the noise. All of a sudden twigs were breaking and it sounded like something was running right toward me. literally 5 ft. I shined wear the noise was coming from but the brush was so thick i couldnt see anything. it suddenly stopped when i shined the light on it and took a few steps and then didnt move. Do yall think it was a bluff charge from a black bear considering I didnt hear any grunting or anything?