I'm on the train to home and you're traveling in the same cabine as me. I feel my feet sweat a lot so I take off my boots. Some seconds and the smell of my sweat socks fills the cabine . I notice you can't take your eyes off my socked feet so I give you an offer you can't refuse. Pay me 10000HUF (30€) and I put my feet on your face and make you to sniff my stinky socks!