Mark you are so right on cranes, I am afraid of them myself. Downright nasty on the ground. Shoot 'em in close with hevi shot Bs and they are better behaved. Although here in Palacios or Collegeport I have never head the dead dog story. Just the poke your eyes out.
As for training dogs, never had a lab that needed anything beyond let them go. Now my wusssy HT dog I .... never mind she excels on geese also. Her 1st was a 12 lb Canada stone dead and from there it is all good.