I have a Boykin Spaniel that is almost two years old. She delivers to the hand 99% of the time. She casts well in water. But when I send her on a blind retreive on land, she goes spastic. If she doesn't find the bumber or Doken in the first couple of minutes, she just runs around the yard hap hazardly. She knows the sit/look command. If she is not retreiving, I can do one blast on the whistle and she will sit and turn to look at me 90% of the time. She will also do this in water 99% of the time, I think it is because the water slows her down. I feel like when she is doing a blindretreive on land, she gets so excited and wants to get find the bumper for me so bad that she is oblivious to the whistle. She disregards the whistle doing blind retreiveson land, especially when in the back yard. I have not forced fetched her and I don't think I have it in me to do the ear pinching. She doesn't have this problem on sighted retreives. I was wondering if an e-collar might aid me in stopping her.