I'll just run # dpkg-reconfigure emacs21 to see what questions it might ask me and woah.........
emacs-remove emacs21 remove/records-gnuemacs: Handling removal of emacsen flavor emacs21 records: purging... Hey wait a second, can't you give some reassuring message here so we don't hit C-c as we don't have any backup .deb here and it sure looks like you thought we said to apt-get --purge or something. What about currently running emacses -- one would wonder how they might be affected to. Maybe warn. BTW, later we see Error while loading 52select-xface etc. Maybe dpkg-reconfigure could ask us if we really want to 'reinstall' everything or are just looking to see what it would ask us.