The squirels at college campuses seem to be completely unafraid of people based on my observations. Just last night a sqirrel ran UNDER my foot as I was walking so that I had to change direction to avoid stepping on it. This is honestly not even the first time such a thing has happened. I have managed to get squirrels and BIRDS to eat out of my hand on several occation, tbh is isn't even hard. I just know back home that squirrels won't let me get within 20 ft of them, and birds fly off if you so much as look at them wrong, going to college and having small animals not even move out of my path was a strange experience.
Having said that, I have never fished for squirrels before, but I am sure that it would be pretty trivial to design a trap to easily catch squirrels given how retarded they are (actually they often jump in the trashcans, someone could simply screw a little thing on the flap of the trashcan so that it only swings one way and squirrels can get in but not out).