person A: I set the burglar alarm to the house every night before bed. Around 3:00am this morning_comma_ the alarm went off
person B: Oh man thats scary! What set it off?
person A: Thankfully it was just the contact that had come lose_comma_ so it thought the window had opened.  I had a really hard time going back to sleep after!
person B: I can imagine_comma_ i wouldnt have been at ease either.