I see I'm using poor choices of words again. I won't be able to get rid of that again.....What I meant to say is that I agree with your train of thoughts while also trying to nudge it back to the hostiles being attracted by vehicles and light while scaring off the more 'peaceful' entities. I'm now agreeing with your posting how you explained yourself. I think all this snowing is doing my mind in, same with the frustrations of not being able to beat this level in this KanColle web game.
I'll agree with the whole light thing, if they do see it from a distance. That would be quite interesting for you to see a curious hostile entity behaving all neutral or peaceful at first. Once they feel like they can attack they should consider it. Some more than others, some less than others. Not sure how the coding works, though should be interesting if you could insert those search patterns rescue patrols, navies, and similar use to search an area. Just an idea. What would be most amusing if you know a mob to be hostile but you stalk it to see what it's curious about with the illusion that it's actually checking out your stuff, maybe even playing around with items. I have yet to see a hostile do such. Would be a nice breath of fresh air. I guess they should also be allowed to stray briefly out of their native biome before wandering back in for safety.
And yes, we players indeed do turtle. The "Digging" monster Weem mentioned would be most appropriate here. Not sure it'll even be considered because people are going to whine and moan about how their stuff keeps being destroyed with them resorting to turning every monster off all because a mob was added to un-turtle them. I really do want to see it added, just that I would hate seeing people not wanting more unique mobs that could possibly make the game more interesting in curiosity and with stories being told how monsters ruined their day. I do agree that there should also be certain degrees of stocking up on wheat, live-stock, supplies, building materials, and etc. Should be a chance to spawn something, but I guess complex thoughts should be added post-game and through mods.
(Have I strayed or poorly worded things again?)