Delete without notifying removed in Leopard iCAL

Question

In the new iCal Apple has removed a function that was useful when dealing with events sent to you by others or invites you sent to others. In Tiger you had the options of "Cancel", "Delete" and "Delete and Notify" for events you sent or sent to you by others that you had accepted.
With Leopard the "Delete" is no longer available. You can only delete events sent to you by notifying the sender or recipient. This is a real problem when syncing issues cause double ups. You can't delete a duplicated event without a message being sent telling the recipient or sender that you have cancelled the event!

Answer 1

Here is a script that I modified to work with iCal in Leopard. It deletes duplicate events without sending notifications. Cut and paste it into Script Editor change the calender name to the right one for you then save it to the scripts folder. It will appear in your scripts menu. When ever you have duplicates that you want to get rid of run the script.
Delete duplicates from iCal v2 --
Applescript -- John Maisey 27/5/5 --
Modified By Paul Barnard to work with Leopard 11.05.07--
Duplicates being events with same title and start time in one calendar --
tell application "iCal"
set sourceCal to first calendar whose title is ("Paul Work")
set testThen to (current date) -- time tester
set mySumms to summary of events of sourceCal
set myStarts to start date of events of sourceCal
set myUIDs to uid of events of sourceCal
end tell
script myStuff
property aSumms : {}
property aStarts : {}
property aUIDs : {}
property aDeletes : {}
end script
set myStuff's aSumms to mySumms
set myStuff's aStarts to myStarts
set myStuff's aUIDs to myUIDs
set myLength to length of myStuff's aStarts
repeat with aNum from 1 to (myLength - 1)
set thisSumm to (item aNum of myStuff's aSumms)
set thisStart to (item aNum of myStuff's aStarts)
repeat with bNum from (aNum + 1) to myLength
set thatSumm to (item bNum of myStuff's aSumms)
set thatStart to (item bNum of myStuff's aStarts)
if thisSumm is equal to thatSumm and thisStart is equal to thatStart then
set the end of myStuff's aDeletes to (item bNum of myStuff's aUIDs)
exit repeat
end if
end repeat
end repeat
set n to count of myStuff's aDeletes
tell application "iCal"
repeat with myDel in myStuff's aDeletes
delete (every event of sourceCal whose uid is myDel)
end repeat
-- display dialog (n & " duplicates deleted in " & ((current date) - testThen) & " seconds") as text -- time tester=20
end tell
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