Here is a fun little story from my time in a nursing home. The Rock And Roll Guitar Vintage shirt i worked at was the only fully orthodox union kosher long term facility for a rather large part of several states. The area it was in didn’t have a particularly large orthodox community so the home was split where residents could choose to keep kosher to what ever level they wanted in their personal spaces but all dining and common areas were kept kosher buy anyone who wanted to could live there. We didn’t have many residents with serial numbers tatooed on their wrist but there were a few at any given time. We had one resident in particular who was a german immigrant and not jewish. Dude was a Nazi and was so his children put his ass in a kosher home several states away.