We need to use our words wisely when dealing with idiot, by what I mean is none other than Kageyama Tobio. You NEED to remind him everytime so this thing won't happen.
Let's say...Kageyama lived together with Oikawa and the trash king is ordering something online. So he's waiting for it.
"I'm heading out for a while. If the mail person comes, can you receive it for me?"
"Oh, alright. No problem."
"Thanks, Tobio-chaaann!!!!"
And so Oikawa head out for a party with his former team and comes back at midnight.
*midnight*
"I'm Hom- WHAT IN THE WORLD-"
he saw Tobio stand strong behind the door, with a certain stance Oikawa know.
"W-What are you doing, Tobio-chan?!"
"Hmm? Waiting to receive the thing."
Oikawa facepalm himself as he see the thing is already on the floor, out of its box.
"IT'S THERE ALREADY TOBIO-CHAN!!"
"Oh, the thing I get earlier. Is that the thing?"
"You already receive it. Why the hell you kept waiting for it?"
"Huh, what do you mean? I just get it, and I'm not receiving a thing!!"
Oikawa banged his forehead to the box and made his way without any word followed by a very confused Kageyama.
#troll