1. If you were to look long enough in any room of our house, you would find a Lego somewhere.
(1.a. And this is in addition to those in the vacuum bag.)
2. The sound of a bin of Legos being sorted through by two to four small hands (for the one necessary and important Lego part that lurks deep in the bottom of the bin) is a unique, enduring sound that one might call "annoying" or "grating" after about an hour.
(2.a. After ten years, the terminology for the sound description is slightly altered.)