Acquiring and collecting data from a subject animal. When a user subscription to the service lapses, a decision on invalidation of their key is based in a determination of whether it’s more costly to the subscriber to invalidate the key, or continue providing an unpaid-for service. Another example method can include adjusting a color characteristic of text to be rendered on top of the background content, based on at least one color characteristic of the background content, so that the text is legible. The second material does not chemically bond to the first material so that the arm cup and arm are rotatable with respect to the base for adjustably securing a cup in the cup holder opening.