If the fruit trees at home are sprayed with pesticides and others are poisoned by eating them secretly, how should the responsibilities be divided?

If you have done the following two things beforehand, you will be exempted from liability

If you have only done one thing, or none at all, you will have to bear a certain amount of responsibility, depending on the casualties of the poisoned person.

Adequate measures have been taken to prevent others from stealing the fruit (that is to say, if the fruit of the fruit tree is easy for others to get, it will be deemed that you deliberately allow others to steal it. At the very least, you must put up a sign and write it "Watch but don't move your hands" etc.)

After applying the pesticide, mark it in a conspicuous place (that is, after applying the pesticide, you should put a slogan, write a notice, etc. in an easy-to-see place to indicate that your fruit tree has been sprayed recently)

If you did not do enough in the above two points beforehand, it cannot be ruled out that you deliberately poisoned the fruit thief, so you must bear a certain amount of responsibility.