Jumping out of my skin!

Last night at 2am the alarm system went off in our house. Talk about making you jump out of your skin. We got up and turned off the alarm and turned on all the lights. We were looking around and trying to figure out what triggered it. When you are sound asleep and something like that wakes you up it really gets your adrenaline pumping. The alarm company called and stayed on the phone while we looked around. John looked up the alarm zones and figured out that it was a window alarm that set it off. We've been doing basement work so we were thinking maybe something got left ajar or who knows. We were afraid to go in the basement though so we had the alarm company dispatch the Sheriff. He came out and looked in the basement and all around the perimeter of the house. Nothing. So we went back to bed. Needless to say its hard to go back to sleep after that. Then the alarm company called at 7am to make sure everything was okay and trouble shoot. While that was thoughtfull we were still asleep trying to recover from the middle of the night wake up.