As SLF, if I'm in a crash, I'm not going to go digging around in the overhead bins. However, if I have small items under the seat in front of me, I'll probably grab them and take them with me - partly so that they don't become a trip hazard to others.
That said, if the landing was bad enough that the overhead bins came open and items fell into the aisle or on top of passengers, I will take whatever I can carry with me when I exit the plane - regardless of whether it's my stuff or someone else's - just to get it out of the way. However, when I get to the door I'm likely to hurl the items over the edge/out of the way rather than take them down the slide.