start one: take over one of their warehouses (by the time i take over one i wouldve killed loads of them, which wouldve started a mob war)
end one: bomb one of their large shops, but making sure there a loads of people inside the shop already.
avoid one: bribe an FBI agent, start annoying a different family, or rob a few banks to pass the time...
lose one: die heroically in the middle of the road while being shoot at by 100s of tommy guns :P
tree man will turbanate you...