[EsmeraldaA]

I see. (think)

People always expect from me to be all cheerful, if I fail to comply they act like I couldn't possibly have a reason. (ha!)

[Monkey Face]

Make a sign that says, "This is Monday. If you are NOT dying, or have an otherwise extreme emergency, leave a message on my voice mail and I'll get back to you when I'm ready."

OK...so it won't endear you to some people...but it will make them aware that you need to get through the day in your own way...:o]