Question:
During the hot summer months, taking the trash out too early (for pickup) could attract animals. Does spraying around the garbage bags (to repel them) with ammonia, other toxic substances, etc... before it is taken out to the curb present a problem of Tzaar Ba'alei Chaim? Thank you.
Answer:
It is permitted ,because you are not hurting the animal in any way, you are only preventing it from accessing your garbage, no differant than buying closed garbage cans.