Presence of mind

He is a cherubic, perennially smiling, 12-year-old Rajasthani delivery boy. He works for the local grocery-cum-vegetable store. Nobody knows his real name so the housewives in our residential complex have nicknamed him Chhotu.
One evening, one of the housewives from building B3 caught him chomping away on a carrot while on an errand to building B1.
”OK Chhotu, so this is what you always do – eat the goodies meant for various households,” she teased him.
”Oh no, maam, I never do this with eatables meant for your building,” came the prompt reply.
He smiled that innocent smile of his, hopped, skipped and scampered away!