You may be the "admin" user but did you sudo or input your password in the course of deleting this file? If not you didn't have the correct privileges.i am in admin mode ALL the time, although this is not advised, so there is no reason for this to have happened nd i did try to delete it from terminal and that did not help either, which is ****ing weird.
lancer runs as root eh - lets all get his ip
and they say mac os makes life easier...