This Is Garbage, Too
It’s important that you teach your children new things when they become old enough. The OP taught their 1.5-year-old child how to throw things into the garbage. This was supposed to make life more convenient since they could take out their own trash. Boy, they overestimated the intelligence of a toddler.
After learning this life skill, the kid would throw anything and everything into the garbage bin, including their favorite puppy doll. They spent a good amount of time looking for that stuffed puppy. They probably found the puppy filled with garbage juice, which is definitely not something anyone wants to pick up.