A day in the life of my 5 year old DIVA!

So Karlee is going through a difficult time right now. She is testing her boundaries and is quite sassy. I have never been more humble and open to suggestions, or have I ever spent as much time on my knees about how to parent her than I have lately. Though she is a pain, I still love her and over the past couple weeks she has made me very mad, but She has said some of the funniest things ever... In her Kindergarten class they take turns through the month on who brings the snack for the day. Soon after our recent move Jeff got her up , threw her hair in a pony, and off they went. I usually check the calender often, but come on I had just moved twice and I was a little tiered. So I go to pick her up and she runs up to the car, opens the door and very sternly says," You forgot snack today, WOMAN!" Oh dear, how do you respond to that? I thought I was gonna pee my pants, and then quickly told her to get in shut the door and never talk to me that way again. Soon after that we were in my bathroom talking, and she was lying to me and I knew it. So I asked her,"do you know where liars go?" to which she replied after a brief pause," I don't know...Juvie?" First of all how does she know of this place and second...lets go with this, maybe this will cure her!