"I had told them that we could not have pets, since we are in a very bad economic situation," Mauco's mother, Laura, tells The Dodo. "We could not afford treatment for the dog. But then Mauco arrived one day from school and said very firmly, 'Mom, I'm going to sell my skateboard to take him to the vet.'"
The skateboard was one of Mauco's favorite toys, but he was willing to part with it if that meant saving the dog's life. So, he went online to advertise his offer:
"Hi I'm Mauco, Laura's son. She lent me her Facebook because I don't have one," he wrote. "Look at this puppy. I found him in the street. He is sick and has a broken leg. I fed him and gave him a bath, but he needs treatment. I'm selling my skateboard to take him to the vet. If anyone is interested in the skateboard, leave your number here so my mom can call you. Thank you, Mauco."
He couldn't have been expecting what happened next.