Four Year Old Humor

D-D was trying to tell Knock-knock jokes today.

D-D: "Knock-knock"
M: Who's there?
D-D: Balloon
M: Balloon, who?
D-D: Balloon plate.....ba-ha-ha-ha-ha!!!!

D-D: Knock, knock
M: Who's there?
D-D: Fork
M: Fork, who?
D-D: Fork gooble glub! Ah-ha-ha-ha-ha-ha!

M: My turn! Knock, knock!
D-D: Who's there?
M: Atch!"
D-D: Whose Atch?
M: No...you say 'Atch who?'
D-D: eew! Do you need a tissue?