dragon@ts2450s203:~
$ chown -R dragon:dragon /home/dragon/*
chown: changing ownership of '/home/dragon/Kava/Technical/TOSHIBA_MK1032GAX_76BS0238S_2018-02-16.txt': Operation not permitted

dragon@ts2450s203:~
$ chown -R dragon:dragon /home/dragon/.*
chown: changing ownership of '/home/dragon/./Kava/Technical/TOSHIBA_MK1032GAX_76BS0238S_2018-02-16.txt': Operation not permitted
chown: changing ownership of '/home/dragon/./.icewm/preferences-original': Operation not permitted
chown: changing ownership of '/home/dragon/./.icewm/keys-original': Operation not permitted
chown: changing ownership of '/home/dragon/./.cache/youtube-dl/youtube-sigfuncs/js_vfl8swg2e_42.43.json': Operation not permitted
chown: changing ownership of '/home/dragon/./.cache/youtube-dl/youtube-sigfuncs': Operation not permitted
chown: changing ownership of '/home/dragon/./.cache/youtube-dl': Operation not permitted
chown: cannot read directory '/home/dragon/./.config/geany/templates/files': Permission denied
chown: cannot read directory '/home/dragon/./.config/geany/tags': Permission denied
chown: cannot read directory '/home/dragon/./.config/gtk-2.0': Permission denied
chown: changing ownership of '/home/dragon/../dragon/Kava/Technical/TOSHIBA_MK1032GAX_76BS0238S_2018-02-16.txt': Operation not permitted
chown: changing ownership of '/home/dragon/../dragon/.icewm/preferences-original': Operation not permitted
chown: changing ownership of '/home/dragon/../dragon/.icewm/keys-original': Operation not permitted
chown: changing ownership of '/home/dragon/../dragon/.cache/youtube-dl/youtube-sigfuncs/js_vfl8swg2e_42.43.json': Operation not permitted
chown: changing ownership of '/home/dragon/../dragon/.cache/youtube-dl/youtube-sigfuncs': Operation not permitted
chown: changing ownership of '/home/dragon/../dragon/.cache/youtube-dl': Operation not permitted
chown: cannot read directory '/home/dragon/../dragon/.config/geany/templates/files': Permission denied
chown: cannot read directory '/home/dragon/../dragon/.config/geany/tags': Permission denied
chown: cannot read directory '/home/dragon/../dragon/.config/gtk-2.0': Permission denied
chown: changing ownership of '/home/dragon/..': Operation not permitted
chown: changing ownership of '/home/dragon/.cache/youtube-dl/youtube-sigfuncs/js_vfl8swg2e_42.43.json': Operation not permitted
chown: changing ownership of '/home/dragon/.cache/youtube-dl/youtube-sigfuncs': Operation not permitted
chown: changing ownership of '/home/dragon/.cache/youtube-dl': Operation not permitted
chown: cannot read directory '/home/dragon/.config/geany/templates/files': Permission denied
chown: cannot read directory '/home/dragon/.config/geany/tags': Permission denied
chown: cannot read directory '/home/dragon/.config/gtk-2.0': Permission denied
chown: changing ownership of '/home/dragon/.icewm/preferences-original': Operation not permitted
chown: changing ownership of '/home/dragon/.icewm/keys-original': Operation not permitted

dragon@ts2450s203:~
$ find /home/dragon -type f ! -user dragon
/home/dragon/Kava/Technical/TOSHIBA_MK1032GAX_76BS0238S_2018-02-16.txt
/home/dragon/.icewm/preferences-original
/home/dragon/.icewm/keys-original
/home/dragon/.cache/youtube-dl/youtube-sigfuncs/js_vfl8swg2e_42.43.json
find: ‘/home/dragon/.config/geany/templates/files’: Permission denied
find: ‘/home/dragon/.config/geany/tags’: Permission denied
find: ‘/home/dragon/.config/gtk-2.0’: Permission denied