Personally in life i have learnt that when you get people to do things for you, people are not scared of you, but of your "friends". Then they find out through mates mates uncles cousins that you paid them, and all respect vanishes. Then they get their revenge........ ON YOU.

Personally be passive, get a big dog, a dog is a mans best friend anyway. You dont even need an agressive one, just one with a mighty bark!!