On further thought, I realise that a custom condition on the send email to
Admin CCs scrip is not a solution—you can only use such a condition to
send either all admin CC emails or none (i.e. you can't send to some admin
CCs and not others this way).
To achieve your desired behaviour without
The simplest solution is that the administrator manually removes themselves
as a requestor when putting in their own tickets. The simplest coding for
this solution (unless your administrator is willing to do this manually on
every ticket creation) is to write a scrip on this queue that runs on
