Well Hans has reached the bottom of the advent calendar which can only mean one thing: Die Hard is going on tonight and Die Hard jumper shall be worn tomorrow.
Fellow black coffee drinker here and I actively dislike any milk in coffee. Why is it sometimes weird when people are doing a coffee run and ask us why we only want coffee and hot water and if we're sure?
You did right by doing nothing. On the grand scheme of things you did nothing wrong so please try and let it go despite it bugging you! It's no worse than you not noticing that your card didn't register when paying and then walking out. It happens with these automated systems.
Absolutely nothing will come of it, it has already been factored in to their profits and losses with self service. Going back and returning it would be worse as they'd have to bin the items (potential contamination etc) and they'd have you on admitting to "theft".
So please don't stress. As someone else said donate to help those in tough times if you're still feeling guilty.
Story time: a couple of years back we were at Vic markets right before Chrissy and they loaded all our stuff onto a $750-$1k cheese wheel.
I was paying and my partner loaded up the bags in the chaos that is the markets this time of year.
I noticed a puzzled glance and they put out another cheese wheel with reflex.
Couple of mins later that look of confusion was bugging me so I checked the bags and yup, my partner had grabbed the whole wheel. We returned it and all parties involved had confused "wtf?" faces for a 5 second interaction.
(My partner may kill me for sharing this story as it's an embarrassing but hilarious brain fart that happens to all of us this time of year).
Edit: and if you're looking for a charity ~ Childs Play giving the gift of gaming/toys to sick kids.
I could be completely wrong here as I'm going off second hand info and cba verifying, but aren't those boxes coded to a specific outside box? What I'm getting at, is it a new one that you're being shipped from what ever provider you're using and doesn't need setting up or is it your old one you've shipped to yourself?
Smooth peanut butter works just as well and doesn't involve molten sugar. Nuts for nuts!