Regarding .gvfs not letting delete a user's home directory

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http://unix.stackexchange.com – I am using Fedora 9. I removed the user using userdel -r command. The user is removed, but the home directory still remains. When I tried to remove the home directory (rm -rf /home/user/), I get the following message: rm: cannot remove '/home/user/.gvfs': Permission denied This happens on random occasions. Which scenario does this occur? Why is this occurring? (HowTos)