You were a third child in a world where a population law had been set, so if the "population police" saw a third child they could kill them. Your parents kept you hidden and sent your meals to the basement where you spent all of your life. you decided to look out of the hole in the basement and found out there was another third child like you in the next house. it took a lot of courage but you finally ran to the house and snuck in. The kid saw you and was shocked "Who the fuck are you!!"