@Lan
1) Houses the dangerous beasts which attacked not only his slime, but had the gull to even look at Him in a threatening manner. This grievous insult to his skill should never be taken lightly because then they never learn proper respect.
2) Got in the way of his shot INTENTIONALLY, so that he could not snipe the Silver Wolf.
3) Allergies can often be a bit of a bitch to deal with, so yeah, burn the source.
4) God damn birds are too loud in the morning. How could he overlook a chance to prevent a INTERNATIONAL TRAGEDY. If he were to let them off, they certainly would continue to be loud, which could in the future prevent him from properly getting a good night sleep. No forest = no loud as fuck birds = good night sleep assured for the foreseeable future.
Yeah, forest deserved it. How could something be so insensitive?