I’m here to tell you, it is not a myth. It may not be guaranteed that you slip and fall, but the same could be true of walking on ice. You are not guaranteed to fall, but your chances of falling increase.
I thought of this as I was getting out of the car this morning and noticed a hole in the knee of my slacks. I slipped on a banana peel in a wet, dark parking lot at the end of November. My knee is still tender and these slacks must be the ones I was wearing when I fell. My foot slipped backwards as I was bringing my other foot forward, so I went down hard on my knee and then down on my bottom.