twisti@attic ~ $ sudo apt-get -f upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]?
Setting up bitlbee-common (3.0.4+bzr855-1) ...
The system user `bitlbee' already exists. Exiting.
chmod: cannot access `/var/lib/bitlbee/': No such file or directory
dpkg: error processing bitlbee-common (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 bitlbee-common
E: Sub-process /usr/bin/dpkg returned an error code (1)