This note is a direct result of how we store bread:
I was taught by my middle school science teacher that keeping the ends on the bread when you store it helps preserve the life of the loaf and inhibit hyphae from growing. So that's what I do, which means the two butts of the bread are always the last slices in the bag.
To try and avoid this, my husband takes a more rational approach. If he gets to the last four slices before I do, he pairs them off into two sets of end+middle.
Now you would think I would have adopted his policy by now, seeing as it is by far the more superior sandwich-making method, but I (being the crass and unusual person I am) delight in making double butt sandwiches. I delight in calling them "double butt sandwiches." I especially delight in making double butt sandwiches for him, and since I am almost always the person packing his lunch, he gets them a lot.
It annoys him, so I made this note to soften the blow the last time I packed one. The note references the Double Rainbow video.
[pen and colored pencil drawing of a double rainbow with a butt at each end, surrounded by the text "Woo!" "Woo!" "Double Butt, so intense!" "Ah! Ah! It's so beautiful!"]