Originally Posted by
GLAinYYZ
I once had a check in agent @ MIA gleefully announce to me that I'll see if the priority tags work - he had tagged my bag and not my non status companion. I was too shocked to say anything

. Fair enough if those are the rules, but I think he enjoyed telling me that a little too much!
If I'm travelling with non-status pax I will check their bags under my own name to avoid this.
This can present issues at customs though - I was once scolded as technically they want bags tagged under the pax that owns them.