Worries about mad cow disease

Therewerethesetwocows,chattingoverthefencebetweentheirfields.

Thefirstcowsaid,"Itellyou,thismad-cow-diseaseisreallyprettyscary.Theysayitisspreadingfast;IheardithitsomecowsdownontheJohnsonFarm."

Theothercowreplies,"Iain‘tworried,itdon‘taffectusducks."