Lisa Maynard

I'm in HR myself for a small company but my mom posed a question to me I can't answer.  She works as housekeeper for a nursing home here in Washington state.  They have meetings during their shifts once a week that are required attendance.  Apparently the supervisor is having trouble with people being late to meetings, mostly because they are actually busy doing their job, not due to laziness or losing track of time.  If you're cleaning up an overflowing sink, you can't stop and go to a meeting until it's done.  The disciplinary action they've put in place for lateness regardless of reason is to draw from a hat different humiliating tasks to perform (charades, sing a song, etc.) or questions to answer, some quite personal.  My mom wants to know if they can do this.  Her HR person didn't know. She's terrified of having to do this because she'll refuse out of embarrassment and she's afraid to lose her job.  Are there laws or rules against this kind of humiliating disciplinary action?