I'm Not Sleepy

My kids are afraid of sleeping and eating. This has been awhile back, but quite good. Lucas was on cough medication which made him gorgy. He was sitting quietly on the sofa. I asked:
Me: Lucas, are you sleepy?
Lucas: NO, I'm not (sounded annoyed)
Me: OK

His expression when I asked if he was sleepy

 

His expression seconds later...and he was not sleepy :)