Great job!
Sounds like Hiro is doing awesome. They do sometimes have their accidents. Maximus is 1 year 6 months and 99.9% potty trained. His accidents are about 4 or more months apart when they do happen. It's rare but he just had one about 2 months ago, and it was a little accident. He knew it was bad too. He went and stood in the corner and I asked him what was wrong. I came over and saw this little puddle. He told on himself...lol. He's such a good boy!