Yes, even with your neighbor's permission it is unlawful.
Yes. It's not illegal to steal an illegal substance, but it is illegal to posses an illegal substance, which would occur at the exact moment of the stealing. It is also illegal to trespass on property you do not own. However, it's a moot point, as your neighbor will never press charges because he has more to lose by doing so than you do. So legality of stealing ur neighbors plants: illegal Consequences of stealing ur neighbors plants: angry neighbors?
What you are suggesting is illegal. You don't have the right to kill a plant on your neighbors property. Should your neighbor realize you have done this you would be taken to court.
It's illegal to bother your neighbors so yes.
No, it is illegal and unethical to steal your neighbor's cat. If you are interested in having a pet, you should consider adopting one from a shelter or seeking permission to care for a neighbor's pet in a responsible manner.
No, That's illegal and a felony criminal act. If it is your neighbors fence and you filed a claim, you would be committing insurance fraud.
Ask. Using a neighbor's wireless without permission is probably illegal.
yes
It very well could be. Call your city attorney, and pose the question to him. He will be able to explain the ordinance and how to get the barking stopped.
No. Unless it is being used for a purpose that affects the neighbor.
no, you can spy on a neighbor as long as you do not get in their yard or threaten them.
Maybe...