I never keep shoes, gloves, etc. outside because I once put my hand into a garden glove that was stored on a shelf outdoors with the tools and found a wasp setting up house in one of the fingers.
I would never be able to put a glove on again!! The wasps up here were so bad this year and I'm seriously still freaked about it. Everything even remotely sheltered had a wasp trying to build in it. I had FIVE along the inside of the roughly 20' shelter off the coop, THREE in the 8x16 topped run that housed some of my extra boys earlier this year, at least FIVE in the rabbit hutch that I had to take down, some set up shop behind feed bags I'd hung to keep snow off the coop deck in the winter, any bikes had to be checked for nests under the seats before ridden for a long time, one tried to build in the door frame of our front door, even an old soggy cardboard box left sitting outside with less than 2 inches of 'top' to it had a wasp nest built in the corner of it. It was total madness!
I had the same thing happen only it was a giant spider. I put my hand in the glove, felt the squish and pulled my hand out to see a nice fat gooey spider on my finger Never will I ever keep anything I wear outside again!
This is why I don't leave footwear or anything else I wear outside. Even if it's inside, if I don't wear it frequently, I have to inspect for spiders before putting it on.