Knock knock. Who's there? Pixel.

Pixel who? Pixel-fect timing, I just got a new screen!

Knock knock. Who's there? Dew.

Dew who? Dew-n't worry, it's just a drop in.

Knock knock. Who's there? Figment.

Figment who? Figment of your imagination, but I'm real and I need to come in!

Knock knock. Who's there? Donut.

Donut who? Donut ask, just open the door!