Bears aren't the only issues I was referring to, although that is often the reason people hang their food. My primary reason for not wanting to get up is that I want whatever little precious little sleep I'm able to get especially if I get the adrenaline rush of scaring away a big critter, I'd hate to give up the warmth I've put into my quilt, and I REALLY don't want to get up if it's raining. Plus what's to keep the critter from coming back again like that night in early April that a cougar kept coming back within 10 yards of me to check out my food even though I scared it off multiple times?
I quickly moved to an Ursack one night earlier this year when a mouse got into a food bag laying next to my head during a very windy night that saw rain after midnight and despite me scaring off the mouse many times. I don't like my food being messed with at all, at least not if it bothers me. I now carry an Ursack as a minimum level of protection for my food on every overnighter, even where bears are uncommon. I'm leaning towards adding an odor proof bag to my food container to further reduce the possibility of encounters with hungry critters. Sure, this level of protection for my food is hardly ultralight, but it keeps me out on the trail. That trip where the mouse got into my food was supposed to be a 10 day trip, but I cut it short after the 4th day because having my food compromised took the wind out of my sails and I didn't want to be out there anymore.