You say your ready for your inevitable death, trust me youll be pissed unless you killed yourself.
Ninja boars are evil at lower levels.
I suggest you raid ant hills before you get hunting (you can raid them after you get foraging) if you raid them while you have hunting then the ants attack you.
Ive lived by the river and never had a problem either. Just make sure you have your claim up.
Ohh and yes keys are potentially evil just a fyi