These animals are considered to be docile, and, typically, they don’t attack dogs and other such pets, even if they feel provoked. Attacking them might be the last defense line possums use against their predators. However, this varies from case to case. When in a group, possums don’t feel that vulnerable and thus might attack the pets provoking them or posing a threat.
Keep in mind that, even if they are usually docile and will go away without confronting the predator or play dead, they might react strongly as well in some cases. That’s why it is best to find a humane solution and remove them in order to avoid such unpleasant events.
If you want to use a catch-and-release trap, make sure you employ one that won’t hurt your dog or other pets you have. Place it in an area where the pet doesn’t have access to take your prevention further. Read a possum trap review of the unit you want to buy before purchasing it to see if it is effective and whether its design is dangerous to your pet.