It makes no sense in carrying all three guns. I'd say pick the best one for the situation. If you can expect to have shots further than 60yrds., take the mini-14, and if you expect the shots to be with-in the 60 yards., take the shotgun. Leave the 10/22 at home! And what's with the picnic table, I've yet to see them come running when someone slaps a cold sandwich or potato chips out to eat

You need to set-up where you can blend in with your surroundings at least a little bit. I've heard of people using the term "ringing the dinner bell" but that usually means blowing on a predator call of some sort, but I've never heard of anyone sitting at the picnic bench to do it