Oh, im good! They're random and not noticeable immediately, so if it goes "off" by itself... I always excuse myself and mention "it's not going to be friendly!" dh has left the room a few times!

Before I went on maternity leave, I'd have to be careful where I was in case I did something that would cause it to go off spontaneously! Where I work, I actually could blame it on someone else... But only if I was near them. Being in the kitchen and the blamee being on the other side of the room just didn't cut it!