you and Rodrick were bandmates, after practising you had left you bass guitar at his place; therefore you went back to get it

you knock on the door, and Rodrick's mother answers it; she was about to greet you but Rodrick came running from his room

"That's for me!"

he shouts to his mother, before she embarrassed him. as she walked away he came to the door

"uh- hey..!"