A/N: Please check out my other Fili and Kili fanfiction called Me and You Against the World. Please send in prompts for this! Enjoy.
Thorin looked up at the sky; not a cloud in the sky. A perfect day to start battle training with his youngest nephew.
"Come on boys. We're going to go do so battle training." Thorin tells his two nephews.
"Even me?" asks the youngest dwarf who was all of 6, his eyes glistening with hope.
"Even you Kili." Thorin says. "I'm going to have your first lesson with you Kili, while Dwalin and Bifur while start teaching you how to use throwing axes Fili."
"Well what are we waiting for! Come on!" started Fili as he and his brother we running down to the training meadow.
When Thorin reached the training meadow Fili was already begging Dwalin and Bifur to teach him how to throw a throwing axe.
"Come on Kili its time for your first lesson." Thorin announced and brought Kili a small blade. He lead him away from Fili's lesson.
"Now you hold your blade like this and…" Thorin was about to let Kili try to do a few test swings when a scream of terror ripped through the training fields.
Thorin started running towards Fili, Dwalin, and Bifur. What happened? Was Fili hurt? Is there an orc pack attacking? Even though Kili had shorter legs than Thorin he was able to race over to his brother quicker. By time Thorin got to see what was going on Kili face had turned as white as snow. He saw Bifur laying on the ground with a pool of blood surrounding his head because a throwing axe was imbedded in forehead. Fili standing next to him.
"I'm sorry Bifur! I'm so sorry." Fili is crying with hot tears streaming down his face.
"It's quiet alright lad. I'll have Oin take it out and bandage it and then we can continue our training." Bifur comforts Fili. Bifur then starts to stand up.
"Better stay down laddie, I'll go fetch Oin." Dwalin gruffs and starts to sprint towards Oin's.
"Fili, I need you to take your brother home."
"No Uncle. I caused this I will stay with Bifur till Oin is here." Fili persisted.
"Now how did this happen?" Thorin asks.
"Well Dwalin was showing me how to throw an axe and on my first throw Bifur went to readjust the target and I threw the axe and it-it-hit him in his head." Sobbed Fili.
"Well then I'm going to take Kili home. Come home when Oin gets here." Commands Thorin and leads Kili away.
In the end it happened to be that Bifur was fine. However he must keep the axe blade in his head otherwise he would bleed out. Oin removed the handle so only the blade was in Bifur's head. Fili had apologized more than 1,000 times but Bifur isn't mad. He even resumed lessons with Fili. Fili always held back at the lessons but Bifur wasn't scared at all and he even pushed Fili to let go more. Bifur was like family more than ever.