gaining/losing traits

[tommonius]

question is in the title, will it ever be the case that doing an action enough times might gain you a trait whether positive or negative? Like a colonist hauling dead bodies so eventually he is no longer phased by it.

Or a colonist getting a brawler trait if she fights in melee quite often?

[slauenbach]

No one can tell but one person but nice idea sounds great!