I usually let them go for a few minutes. I have mine set up to where they will stay upright if they get tugged a little, they are made of pool noodle, with PVC ran through them, A T on one end, and a cap on the other. There is a piece of rebar on the inside, and it goes to the opposite end when tripped, thus standing up the jug. If the fish gets off they usually lean to the side and dont move around anymore. Just FYI, if you put that bait on there in tact, even if it is dead, a game warden may still write you a ticket, it is best to cut any bait you put on there. The game warden will most likely think it was alive at the time you hooked it. (If it is a whole fish) You were very lucky, you should never throw out jugs and leave them, or go to bed, that is what "those guys do" if a 20+ lb blue grabbed it, pulled it under the water, and got tangled in a log somewhere, you probably would have killed that fish. They cold have also traveled to a very remote part of the lake and been completely lost. Which is why I said "Don't become one of those guys". I hope you understand I am not trying to be a dick to you, but I jug fish every summer, and hear and see these things over and over again. A 15lb flathead will pull that jug so far under the water you cant see it, Please stay with them any time you put them out, it will save yourself the trouble of wondering what happened to it.
Fishing is a science, study, experiment, fail, and succeed...then start over tomorrow. Yeah I'm a science guy.
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