iCal spam

[objectwerks inc]

Anyone else start seeing spam show up in iCal?   It appears that the  
mere reading? of an email with an iCal appointment in it will add it  
to iCal without any sort of confirmation.  I do not read the spam but  
collect them in a spam folder.  Sometimes I get a false positive,  
which I click on and delete and Mail.app will automatically "read" the  
next email in the spam folder when that happens.  I assume that is  
where these are coming from.

Chad