The lack of regretting his own actions truly is regrettable.
Madness string 6143
'Siberia', historically, has been less a geographical designation than a state of mind, a looming threat.
He couldn't figure out how to flush the toilet but mentally knew it was supposed to be clean when you leave, so he'd take his poop from the toilet, wrap it in paper and throw it in the trash. Dementia is horrible.