So you know that day which comes just after Saturday, but right before Monday? Yeah well we call that Sunday.

Sun-Day.
Why sun day? I really fail to see why we should associate this day with the sun; the universal symbol of happiness, when frankly it deserves no such title. The day just after Saturday; widely regarded as the highlight of the week, but the day before Monday. That dreaded Monday.
Although, bad as sunday's are, I don't particularily enjoy Saturdays either, but thats just me.