User blog comment:IamJakuhoRaikoben/Chapter 413: The Book of E.N.D, Review./@comment-2214433-20141222172054/@comment-4449950-20141223002720

For me it's more the fact that Gray is ignoring contradictory evidence from a third party with experience in this area that is annoying me. Sure, his dad did (sort of) say that he wanted to take out END, but it was never spelled out to us (the audience) what his plan was. We only got that he wanted to take out END and that he learnt IDSM for that because he heard END was a flame Demon; his plan is entirely unknown and unless he told Gray off-panel (which would be daft imo) Gray has no real plan either apart from destruction. Then we have Igneel who actually fought END and lost (which was confirmed in front of Gray by Atlas) and Igneel HIMSELF coming in and telling the two not to fuck around (Igneel, bloody FIRE DRAGON KING) and Gray won't even pause to hear people out? Igneel's plan may not even contradict Gray's - Igneel just said to not let anyone get the book and not do anything with it. Is keeping it still/safe until they can work out a plan really so bad to Gray??

That's what's annoying me. Not that the two have (seemingly) different plans, but that Gray is going against the more rational character I thought him to be and completely ignoring everyone around him for favour of a plan unproven to work from a guy who admitted to mistaking a dragon for a demon.