Funny! I almost got "caught" when making a quilt for DH for Christmas. I was working on it only at night after he went to bed and thought I was safe one night when, lo and behold, I heard him coming downstairs (my studio is in the basement). I had to hurry to the door and turn out the lights like I was finished for the evening! Luckily, he didn't come into the room to get something (we have some extra storage cupboards down there, too). I managed to keep it a surprise until Christmas morning!