Guys you're gross if you do that?

Girls have you ever left your shoes and socks outside of your locker and when you came back to change found them "used"? I never put them inside my locker at work and I didn't even think of somebody would do such thing I wen't home one of them was slightly moist but I was happy to go home and finaly at home I noticed the yellow marks and when I took a sniff I couldn't belive that somebody would do that to me. I feel terrible. What should I do?

Guys you're gross if you do that?
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