No mounting of specific partition on external usb hard drive


I’m using openSUSE 11.1. I have an external usb hard drive with two partitions: 1. FAT32, 2. Ext3. When I plug in the drive the system automatically mounts both partitions by default. Well I don’t like FAT32 at all but I need it because most people I know are only able to access FAT32 or NTFS or whatever ms file system. Is it possible that the system will only mount the Ext3 partition by default and ignore the FAT32 so it can only be mounted manually?

Thank you very much for your assistance.