A little boy discovers that if you give a mouse a cookie, he's going to want a glass of milk. And then he'll want a straw, and of course he'll want to look at himself in the mirror to see if he has a milk mustache.A little boy discovers that if you give a mouse a cookie, he's going to want a glass of milk. And then he'll want a straw, and of course he'll want to look at himself in the mirror to see if he has a milk mustache.