[mook]

GM call, same as the other three modifiers -- nothing official.

Could certainly be problematic if the players suddenly start insisting their PCs are "highly motivated" on every action they take, but it's not really advice for the GM about "assigning modifiers to a situation," but rather advice for the player about "this is what the GM will do to assign you a target number."

The example character only has a handful of skills, none of which traditionally get a ton of modifiers except for his combat skills... but we haven't actually got to combat yet, so I just whipped up a litany for his scrounging.

I dunno, maybe something concrete like "it's raining" would be better.