Mixing Up Sand Dough and Bubble Dough During Nap

2 y.o. scratching at my arm while trying to get him back to sleep at nap: "What's that?"

Me: Oh, play dough.
 
"Why you say 'no?'"
 
PLAY - DOUGH
 
"I can play now?"
 
No, play DOUGH
 
"Why you got play dough?"
 
I played with play dough while you were sleeping.
 
Shocked and offended: "Why you do that?!"
 
If you take a good nap, I'll let you have some too.
"Oh, okay!"