Hive "drop table" permissions error.

gistfile1.txt

Contents of data.csv:
--------------------
joe.schmoe,73
bill.foo,31
john.smith,2

Contents of Hive script:
-----------------------
CREATE TABLE some_database.ages (
    name STRING,
    age INT
)
ROW FORMAT
DELIMITED FIELDS
TERMINATED BY ","
;
LOAD DATA LOCAL
INPATH './data.csv'
OVERWRITE INTO TABLE some_database.ages
;
DROP TABLE some_database.ages; # Causes a permissions error