Gertie blows my mind...she's so "scientific" about everything. She has an identifiable vocabulary, can count, & understands fluent human (& she likes a few French phrases thrown in for fun). If I don't specifically tell her my EXACT travel plans, and count out the days I'll be away, she'll get sick while I'm gone. I discovered this once when I was late returning by 1 day...the cat sitter told me she was fine until that LAST day when I didn't return when expected (WHAT??? Your fingers are broken & You couldn't CALL???). When she's precisely informed, she's perfectly fine... if not, she makes me "pay".
My male orange tabby is SO sweet, lovable & affectionate

... but (ssshhhh) a huge coward & not the brightest bulb on the porch. Gertie thinks he's a moron and wacks him up side the head every single morning whether he needs it not. I have to specifically TELL her to TELL him what my plans are (he does NOT speak fluent human) otherwise she'll just let him suffer in cluelessness!