3. If you want to adopt a stray dog, you must send it for external deworming and join it.
If the shovelers and stray dogs become best friends and are willing to take them in, they must be taken to deworm their bodies and get rabies vaccinated.
I think stray dogs are not as risky as people imagine, because they have low probability of rabies attacks, and most of them are not prone to attack people actively. If they grasp the appropriate communication skills with stray dogs, they can still be good friends with them.