Disclaimer: Naruto isn't mine
Being a dad means believing that you can put a crib together, opening the box to find two thousand parts and eight pages of instructions, and then, after six hours, realizing you're missing the three most critical pieces.
Shikamaru knew he was smart beyond means. He should have been able to put together a crib in his sleep and in ten minutes flat. When he opened the crib box he didn't expect more parts than could be found in the human body.
The instruction booklet might as well have been a textbook. It was a thick and you really didn't learn anything from it.
And how did ten minutes turn into six hours. It must have been because of daylight savings times. Only explanation.
But Shikamaru got it done. He did it in the way he's always done things with absolute perfection. It was troublesome but dealing with an angry Kiba was worse. As Shikamaru was getting up he noticed two pieces that he had forgotten to add.
Three seconds later, the crib collapsed.