Sparky
I hadn't eaten in 24 hours due to being so busy
Well, perhaps
you were tired, miserable and grumpy and
you transferred this to the CC member!
Never have I, maybe luckily, in all my air miles, both lo-co and national, ever had cause to complain about service or attitude, even from CC on their 5th sector of the day and just about out on their feet. Treat them with respect, interact with them as human beings, and you will see the best in them.