My son was 2 years old and loved those door stoppers that went twang. You know those coiled thingys with the white rubber cap. They drove me crazy! I wanted to remove them all. But I didn’t, because my son seemed to love the resultant noise.
Here is the email he sent me last night. (He is an unschooler that is now taking engineering.) “Hey Mom, These days I’m doing analysis on oscillating machines, like a door stopper. You know the spring ones where you pull it to the side and it goes dwawawwawanngg? Who’d have thought I’d be doing the same thing today in school as I was doing 22 years ago….”