How To Sour The Milk

I’m checking out a woman’s groceries and bagging them as I go. I bag up her regular milk, and then I get started on the four cartons of chocolate milk.

The customer notices this and stares at me suspiciously as she says:

Customer: “Huh, you segregated my milk.”

Thank god she had both white and brown bread, which both went into the same bag and allowed me to redeem myself.