Knock knock. Who's there? Leaf.

Leaf who? Leaf me alone, I'm busy!

Knock knock. Who's there? Sew

Sew who? Sew long, I've been trying to stitch together a decent joke.

Knock knock. Who's there? Wire.

Wire who? Wire you not opening the door?

Knock knock. Who's there? Pane

Pane who? I'm glass you're excited to meet me, but I'm a little transparent about my feelings.