I helped a bus passenger sitting beside me, take his bus card out during an impromptu inspection in a crowded bus as I observed his master hand was gauzed up (probably due to injury).

He took time to slowly open his wallet up and take his card out, so I assisted him in taking his card out for the inspector.

When he had wanted to put his card back into his wallet, he struggled to open his wallet as well since his left hand was only mobile, so again, I opened his wallet for him and let him place his card back into it before closing it up.

Being kind towards another sentinel being is free