"Knock Knock - Alec" joke

Knock Knock
Who's there!
Alec!
Alec who?
Alec-tricity. Isn't that a shock! Knock Knock
Who's there!
Alec!
Alec who?
Alec coffee, but I don't like tea! Knock Knock
Who's there!
Alec!
Alec who?
Alec my lolly!