Darrin, Are You Absolutely, Completely Sure?

"Darrin! Is you lunch in your backpack?" Mom asked. "Yes-s-s-s!" Darrin replied.

Later at lunch, Darrin found out he forgot his lunch. 

"Darrin, is your test paper turned in?" Mr. Fin asked. "Ye-e-e-es!" Darrin answered. 

Darrin got a zero, because he didn't turn it in.

"Darrin!" -Darrin stopped Justin from talking- "No, Justin. I probably didn't." 

"I was just going to ask you if you have a basketball." 

Darrin put his head in his hands. 
"Uggghhhh!"