Dang, Katie, for years I could not drink pop out of a can or even watch someone else do it...the very sight of a pop can literally nauseated me because that's how my son smoked crack too. Even today when I see a stomped or squished pop can, a shiver runs down my spine, even though it may be quite harmless and simply be a squished can.
I'm glad you made sure Visa has you protected again and changing your locks and alarm is a good idea.
It's a mama's worst nightmare to have to do these things to protect ourselves from our children.
Big hugs from my heart to yours.