history: When my dog was still potty training. I just recently finished potty training my dog_comma_ that was quite the nightmare with sooo many puddles needing cleaned up. Oh man! I hear you. I rescue animals and it is VERY hard to potty train them!
current: I can imagine a rescue, generally being a little bit older than a fresh 8 week old someone would get, can be much harder.. It's a painful process for sure!
next: For sure! It is much like potty training a kid. Actually I think dogs are easier then kids lol!