A precise location
Attorney to witness: "And where was the location of the accident?"Witness: "Approximately milepost 499."Attorney: "And where is milepost 499?"Witness: "About halfway between milepost 498 and milepost 500."

Give a man a fish
Give a man a fish and he will eat for a day. Teach him how to fish and he will sit in a boat and drink beer all day!