I once had a woman about 14-15 years older than me try to pick me up at the club with the line "I have really cute feet." Easily the most bizarre line I ever got. I also know a guy who would (maybe he still does? I have not asked lately) get off on the smell of women's feet. I also grew up with a girl who ended up in the "hmm, never saw that one coming" field of foot fetish pornstardom. Weird, yes but apparently common. Strange turns, threads take on this board.
When I was a teenager, some perv parked along the side of the road (in a decent residential neighborhood) tried to get me to give him my shoe so he could whack off in it. You can just imagine my shock and disgust. There are some weird people out there.