Sometimes after kids went to bed Ann and I will want to watch some DVDs just to relax a bit. David is still little and wakes up a couple times a night so Ann always brings the baby monitor downstairs to make sure that he's ok.
The funny thing is that sometime we'll hear David cry. If Ann stands up and takes a step toward the stairs, he'll stop immediately. However, if Ann decides not to go up to check on him, he'll start to cry again. As soon as Ann turns around he'll stop again. This has happened many times now, we are joking that maybe David has a "mommy monitor" set up somewhere in our basement so he always knows what we are up to.