Hare in your milk!
A hare dare.
He heard they were getting hares and lost interest!
A budgerigrrrrr!
Women Say the Darndest Things
With a cowculator.
Reprimand from the university ethics board and immediate withdrawal of all research grants.
Milk and quackers.
Because the cow has the udder
A Receding hairline
Two rabbits riding a brontosaurus.