So this happened with my seven-year-old son.
Jack: When can I have my tablet back?
Me: On Monday after you do your homework.
Jack: But why?
Me: Because you got it taken away for not going to bed when you were told and lying about it.
Jack: But I didn’t!
Me: You were standing right here when I told you to go to bed at 9:30 then you lied to Daddy and said no one told you to go to bed.
Jack: But I didn’t lie. No one told me that.
Me: You were standing right here! You even whined about it.
Jack: No I didn’t.
Me: You’re lying to me about lying right now.
Jack: No I’m not.
Mine really do crack me up. When they’re not making me want to strangle them. I try to write down as many ridiculous conversations as I can. There are a bunch on my tumblr.