table rights

[Rajen Shah]

Hi All
I am using mysql-5.0.13 and mysql query browser 1.1.5
I have created user 'testing' and database test & table data
I had given select and insert rights to testing user with following command
GRANT Select,Insert ON test.data TO testing
I cross checked mysql.tables_priv table , there testing has only select and insert rights.
when i login as testing , its allows me to delete record from test.data table.
can anyone tell me , how can testing delete records from test.data when he do not have delete rigths.