You're taking your dog for a walk through suburbia and after it toilets you use the doggy bag to pick it up (sealed tight, clean bag on the outside). Holding on to the bag, you walk past a house that has it's garbage bin outside (bins got emptied that day). Do you:
A) Dispose of the doggy bag in the residential bin knowing that there are no public bins close to where you are and think nothing of it.
B) Continue to carry the doggy bag for another 30 minutes until you get to a public bin to dispose of it.