You think my kids will be sarcastic?

I have recently decided that I am raising my children to be incredibly sarcastic.  It's like the one thing that is passed down from generation to generation in my household. And as long as they respect at the same time, I like to trick myself into thinking their sarcastic mindsets will be beneficial to them as they age. I know that if I couldn't make light of things most of the time, I'd have gone insane a long time ago. 

So here are some of the most recent pieces of conversational gold between my children and me. It's starting to get hard to see who is more sarcastic: me or my children... (Keep in mind, Rylianne is 6 and Ethan is 9).

Me: Rylianne, stop being a brat to your friend. She is your guest.
Rylianne: Do I look like a brat?
Me: Yes. Knock it off.
Rylianne furrowed her brow really hard and then tried to muster a smile to show me she could not look like a brat if she so choose.

Ethan: Mom, I'm hungry.
Me: Ethan, you ate at the exact same time as I did. I'm sure you can wait till dinner and not die from starvation.
Ethan: Yea, but my food metabolizes faster than yours, so it's not fair to make me wait so long.
Me: How old are you?
Ethan: You tell me.
Me: What nine year old tells their mom they must eat because of faster metabolism?
Ethan: Me. I learned it in school... or mythbusters. So you should feed me.
Me: You know how to make Ramen. If you'd rather cook us all dinner, the chicken is almost defrosted.
Ethan: Ugh... I'll just watch tv so I don't use any more energy because of how starving I am.
Me: Yea, thought so.

Me: Ethan, please stop talking. You're just digging a bigger hole.
Ethan: I can talk. It's my mouth.
Me: Right now, it's my mouth, seeing as you are nine, and if you don't shut it, I'm probably going to get very angry.
Ethan: You can't make me. (At this point, I'm pretty sure laser beams shot out of my eyes in his direction, as his eyes widened, his mouth shut, and he walked out of the room.)

Earlier this summer when Rylianne was five:
 Rylianne: Mama, that's peculiar.
Me: What did you just say??
Rylianne: Peculiar... duh.
Me: Do you know what that word even means?
Rylianne: Yea, Mama, duh... It means strange and funny. I thought you would in particular would know what it means.
Me: What? Whose kid are you???
Rylianne: Yours, mama. Geez.  (Said with a very serious look on her face)

Driving in car, kids in backseat.
Ethan: Rylianne if you do that, you could get really hurt or die.
Rylianne: No, I'm safe.
Ethan: It doesn't matter. That's dangero--
Rylianne: Ethan, stop being so dramatic.
Ethan: What? I'm not.
Long pause...
Rylianne: Mama, what does dramatic mean?
Me: Apparently, it means exactly what you think it means.