I don’t think so….
It depends where you are trying to do the deletion from, ie Lotus Script, or just the client front end and the delete key.
Depending on when/if Notes considers this as an error will determine whether or not you can change it. You may want to try using an “On Error GoTo ErrorSub” and then have an “ErrorSub:” etc at the end of the code (remember your Exit Sub before the error sub).
In the error sub just try MsgBox “Sorry, you are not good enough to delete this” (or something to that effect