well try talking to your parents and ask them why they don't want him
I had 1 dog and I got another without my parents knowing and they said they didn't want him I told them it was for my other dog so he had company and he didn't feel alone and after sometime arguing with them (mostly my mom) they said yes but I had to clean and feed him basically do everything and I told them yea I already know
Take a sketch of what is happening. Then when you get back to where you work take that rough draft and crate it as best as you can make sure to use color so you get the color right