It may not sound gross but if you've had to witness this foot washing in public, I think you'd be disgusted, too.I was in an RV park just outside of Yosemite a few yrs. ago when a small caravan of Muslims came in.
RV parks have "dump stations" where RVers dump their sewage holding tanks. They provide a garden hose for washing out dump hoses and spillage. A bunch of these Muslims stood there at the (sewage)"dump station" to wash their feet and there were public showers right across from the station.
EWWWWW! I don’t get the foot washing thing but I certainly don’t get washing your feet near the sewage!