Be cautious
If you do come across a stray and want to help, do not be so quick to hug it and get into contact with it right away. A lot of stray animals carry diseases, so it is recommended that you keep a distance first before approaching any of them when you see them.
The last thing you want to do is get sick and have to go to the hospital. This can be very bad for your health and not only that but who will look after the dog you tried to save when you need medical attention yourself? Be careful when handling strays and be aware.