That's disgusting, I've never heard of that before.
Just reminds me of this girl I was talking to the other day. She mentioned how she showers only on a certain day of the week. I thought I'd misunderstood her at first, but then found out she actually only showers ONCE a week! Looking at her you would not be able to tell as she looks okay, now I can’t stop looking at her now and thinking, ugh.
She’s atheist so I know it isn’t some religious thing, no idea why she would do that and then tell everyone about it.