[header] How to convince your parents to buy you a second dog [title] Earn credit by caring for your current dog. [step] How you behave up to the point of asking can affect whether or not your parents say " yes. " try to earn credit by caring for the dog you have now. 
This will show your parents you're responsible enough to care for a new pet. [substeps] Step up and take on more responsibility in terms of caring for your current dog.