Say goodbye, or Sneak out?

Marce has had to get used to a new room, and new teachers for Nursery but is now getting back to where he used to be, good for the most part about going to Nursery. I have always just pretty much snuck out because I thought that was the easiest thing to do, now I'm not so sure though if it's the BEST thing to do. If Marcelus is going to be good about going and staying and me leaving then I think it would be curtious and not so rude if I formally say goodbye. I just don't want him to cry and everything, when I could still just sneak out. He doesn't cry when he realizes I'm gone either so it's kind of like "why mess with a good thing?" right? I don't know, there's a poll to the right, and you can comment any further thoughts below...