Ok i experienced something yesterday with my BLM 16 month old pup that was extremely strange. We were walking on a heel at my Grandparents house (who had a 2 month old lab puppy) As i was walking zeus at a heel in the yard i walked through a circular area about 3 foot wide that he would NOT enter. He stopped in his tracks at my side and would not enter the circle he would prance around the outside of the circle but never entered. He also began to foam and drool at the mouth, which i looked up and seems to be triggered by some type of nerves or anxiety. After investigating the area it looked like my grandparents puppy may have used the bathroom in that area but it was hard to tell. Im not sure if some other sent was in the area that had him freaked out. Has anyone experienced this before?