This is kind of different but Ripley is OCD and one of his habits is to smear the ground with his paw five times before he starts drinking. If you interrupt him he has to start over. Poor neurotic cat, sometimes it can take minutes before he even gets his first sip.

If you bring a plastic bag in you can always expect to have Rumor bust through the house to lick it. Rocky will eat them but he doesn't come running every time he hears them. You can just barely rattle a plastic bag and Rumor is there with her tongue out.