Oliver <sitting in his high chair, wearing a sweatshirt>: ZIP! ZIP! ZIP!
Me: You want me to unzip your sweatshirt?
Oliver: NO! ZIP!!
Me: You’re right, your sweatshirt doesn’t have zips, it has buttons.
Oliver: Buttons!
Me: Yes, buttons.
Oliver: ZIP ZIP!!
Me: Do you want your sweatshirt off?
Oliver: ON!
Me: Ok. You can keep it on.
Oliver: OFF!!
Me: You want help taking it off?
Oliver: Uh-huh.
<I help him unbutton and take off his sweatshirt>
Oliver: ON! ON! ON! ON! ZIP! ZIP!
Me: <throws sweatshirt in his face>