How Weird Is This?

I'm working on a post or two about my trip to Italy, but I thought I'd post about this since it happened today. This morning, when I went to put my laptop in my backpack, I noticed that one of the rubber feet had fallen off. I wasn't surprised since it had been loose for a while:


The odd thing is that it turns out that the rubber foot is structural. Without it, you can see straight into the inside of my computer. I tried to take a pic:


How weird is that?

By the way, I found the missing rubber foot on the floor of my office and currently it's held in place with tape. Should I try to glue it back on? With what?