>>I still say the ricin is for Lydia’s tea<<
I watched ‘Gliding Over All’ again recently, and this time noticed that when Walt goes to meet Lydia in the restaurant to get the names of the inmates, he brings the ricin vial with him. Once she leaves, he palms it back up off the table before putting his hat on.
I hadn’t noticed that before. This now puts me in the “he poisons Lydia with the ricin” camp - whereas before I thought he’d use it on himself at the very end.
That’s why I said it. I remember that scene well.