Oh, what the neighbors must think

Me:  Hey, will one of you go get the mail?
Joshua: (looking over at Caleb & snickering) Hey, Caleb, why don't you go!

I'm a little confused at this offer seeing as how they usually argue over the opportunity

Caleb: (taking off for the front door) Sure!!

Then it hits me as the front door slams and Joshua doubles over in laughter. 
But it was too late.