If you were out on a large, sprawled out lake fishing from before dusk one evening until around 4:00 the next evening and in the wee hours as dawn is starting to light the sky you see something bobbing along in the water and upon checking it out you find its a noodle type jug line with a fish on it, known by the fact that the fish was trying to pull the noodle float under. You leave it alone and way later in the day you see it out in the middle of the lake still bobbing along (the fish keeps trying to take it under and can't) but still you leave it alone. Along in the late afternoon (3:30 or so) you see it yet again out in the middle of part of the lake. Still struggling to try and pull the noodle float under. This is nearly 10 hours since you first saw it that morning. You pull it up to see what is on it and its a nice channel cat weighing an estimated 6 or 7 pounds. No identification on the rig. The water out there is about 30 feet deep, the line is barely 2 feet long and the cat is hooked with a large circle hook. The cat has turned red around all fins and is weakened from the struggle. This fish was set free. I know many will probably disagree with my doing that but I couldn't see a fish that nice floating around on a rig that in all likliehood was lost and would not be picked up by the original person that set it out. It was the only one around the whole day over a huge portion of the lake. Would you set the cat free or leave it?