A different scene in the movie. Astrid really is getting sick of Hiccup, good or bad, so she once again tells him to pick a side. So he shows them.
"You need to choose a side!" yelled Astrid to the weak child who lay on the ground after knocking a dragon out with his bare hands.
Hiccup stood up and shocked everyone.
"Okay" he nodded and walked out. Gobber, Stoic, Astrid, Ruffnut, Tuffnut, Snotlout and Fishlegs ran after him.
They found him packing a bag in his room.
"Hiccup, what on Odin are you doing?" asked Snotlout.
"Doing good on my choice" said Hiccup as he slung the bag over his back, grabbed his book, pushed past the people at his door and made his way outside.
They stopped at the front door when they heard Hiccup yell:
"Hold celebrations, Hiccup the Useless has packed his bags and is leaving!"
The entire village went silent and stared at the boy as he walked through the crowd and into the woods.
The small group chased after him.
He waited on a small cliff, and when they arrived, he smirked and jumped over the edge.
They quickly arrived at the edge and saw something they did not expect.
Instead of seeing a broken Hiccup, they saw said boy land on his feet and forward roll.
He looked back up, shook his head and walked to the centre of the cove.
After a while, the group found a entrance and walked in to see Hiccup holding a sword, pointing it at them.
None of the teenagers were scared. After all, if he can't fight with axe, the easiest weapon for a Viking, how could he fight with a sword in his left hand.
Gobber and Stoic were bricking it. Gobber and Stoic had Hiccup learning to sword fight since he was three, because his body was suited for a smaller weapon.
"Hiccup, come home" said Gobber.
"Gobber, none of this is against you. Or any of you in fact. Astrid told me to choose. Choose between Vikings and Dragons. Me and my friend, you see, we can't choose" said Hiccup.
"Friend, your useless, you don't have any friends" said Snotlout.
"And that is why I have to leave. Me and my friend are not safe here. Ever since Mum died, I have been ridiculed, bullied, laughed at, teased, nearly killed, need I go on? I come here, every chance I get and my friend lets me be myself. I just want to be myself" said Hiccup.
"You can be yourself" said Stoic.
"No I can't. I can't kill dragons. I tell the truth and no one believes me" said Hiccup.
"Go on then, give us an example of when you were telling the truth" Astrid crossed her arms. Hiccup was a liar.
"I shot a Night Fury out the sky" said Hiccup.
"Liar" sneered Astrid.
"No, I shot the Night Fury out the sky. I went to kill it and let it go. He hide in this cove and we became friends. Hiccup the useless, best friends with a Dragon" smiled Hiccup.
"STOP LYING!" yelled Stoic.
"I'll stop talking then, since all that is ever out my mouth is lies" Hiccup smirked. He took a step back .
"Hiccup, please, we can help you" said Stoic.
Hiccup shook his head and took a step back.
"I am happy" he said.
The others sat down when they saw green eyes glaring at them from the shadows.
"Hiccup, please to Thor tell me you were lying about the Night Fury?" whispered Gobber.
"Oh, you mean TOOTHLESS!" the Night Fury jumped from the bushes and glared at them from behind Hiccup.
"Now, you'll excuse me, I think I'll be leaving now" said Hiccup, he climbed onto the back of the dragon.
"Hiccup?" whispered Astrid, "when I said pick a side?"
"Well, I told you, I ain't. Me and Toothless are not picking a side, we are going to find a way to end this idiotic war" said Hiccup and the two took off.
Leaving a gobsmacked group behind.