causing problems
disruptive
badly-behaved children
spoiled brats
not worth doing
a waste of time
cause somebody problems
mess somebody around
use bad language
swear
people whose behaviour it is good to copy
role models
a former policeman
ex cop
changing attitude to the world
new outlook on life
have a good relationship
get on well
deliberately frighten or threaten someone
bully
do something because everything else has failed
do something as last resort
behave badly without being punished
get away with ...
spend time doing nothing
hang around
have a secret plan
have a trick up your sleeve