My version of VT's joke
Knock knock
Who's there?
Amos
Amos who?
A mosquito
Knock knock
Who's there
Anna
Anna who?
Another mosquito
Knock knock
Who's there?
Arthur
Arthur who?
A third mosquito
Knock knocvk
Who's there?
Consumption
Consumption who?
Consumption not be done about all these effing mosquitos?