I used to have to give my brother's cats the filtered water from the fridge door, rather than tap water, because they didn't like tap water.
I make my cat sitters call me.
I'm psycho, but Boris is on so many meds now that I get really concerned about him. They just use my house phone to call my cell and leave a message to let me know that he's still eating, drinking, pooping, and peeing, and such.