Sock it to me

Why are there socks in the road, parking lot, street? I always wonder about this. The same with single shoes. I guess maybe if they're in a parking lot, they were in someone's car and fell out. Probably because they were on top of a huge pile of fast food sacks, cups and boxes. Maybe they were in a laundry basket and fell out when the owner was carrying them to or from the laundry. Maybe they threw them out on a lark. Maybe they were having an illicit affair in the back seat and the socks just came flying off in the heat of passion.
The street or the highway is a little harder to fathom. Perhaps their laundry was in the back of a pick up and the sock flew out. Maybe they just threw them out. Usually, it's only one sock and it's usually white. What's up with that? Does that mean that men (it's almost always men's socks) who dress professionally don't throw their socks out the window? If they're wearing a suit and tie, do they keep their socks on? Maybe they just have their illicit affairs in hotel rooms instead of back seats. Maybe they don't take their socks off for said affairs.Maybe the white sock wearers are having affairs with their neighbor and when the spouse shows up unexpectedly, they jump out the window and while running across the street...well.....they lose one sock.
What happens to the sock's mate? Is it just carelessly tossed away when it's discovered that the mate is missing on the streets? Does anyone ever go back and look for the missing sock? What do you do when you see a lone sock on the street? Do you just leave it there all alone to be run over, rained on and eventually swept up by a street sweeper?
I guess it can be said that some socks don't mate for life. Badda bing.