This post on Parent Hacks reminded me of a story my friend Brad told me years ago. His kids were given a very noisy fire truck, and it bugged the heck out of him and his wife, Sue, for weeks. Until one day it broke! Everything about it worked fine, except there was no more sound. Ah, the relief. Until not three days later:
"Hey, I got a friend at work to fix the fire truck!"
"Dear! Do you know how long it took me to break it!?"