"Of course I've got lawyers. They are like nuclear weapons, I've got em 'cause everyone else has. But as soon as you use them they screw everything up"

In this quote, Danny DeVito is comparing legal representatives to nuclear weapons. He acknowledges that he has lawyers because everybody else does, but he likewise acknowledges that they can be destructive if used. Much like nuclear weapons, attorneys have the power to trigger mayhem and damage if not dealt with thoroughly. DeVito is indicating that the legal system is flawed and can typically make circumstances even worse instead of resolving them. He may also be discussing the social pressure to have legal representation, even if it might not constantly be required or advantageous. In general, this quote highlights the complicated and typically unfavorable perception of legal representatives in society.