A brown-clad-foot-inserted-into-brain example

I dropped my cell phone last week.

My cell phone wasn't ringing when people were calling me.

Logic would tell you (at least it told me) that the drop (onto concrete) messed something up.

So I gave it to Randy to take into town and get fixed/replaced/analyzed.

Turns out some genius figured out that the ringer was just turned down.

Whatever. How'd that happen?