A fence.
or
When it came time to pay, the skunk didn't have a scent, the deer didn't have a buck so they put the meal on the duck's bill.
or
When you are eating a watermelon.
or
Drinking, bathing, washing, swimming, etc.
or
Because they only know their ABCs "Anybody But Clinton".
or
By paying them to cheer for him during campaign events.
or