Creative Trickery

My Dad use to always say, "It's not nice to tell a lie!"  Truth be told it isn't nice.  In fact quite honestly I don't know how people have the mind to tell lies; seriously how do they keep up with one untruth after another.  I don't get it.  But sometimes at least in our family we do use creative trickery.  It is not lying in the sense of the definition:
"a false statement made with deliberate intent to deceive; an intentional untruth; a falsehood"  We do it when a surprise is going to take place.  But oh sometimes even with creative trickery my head spins out of control just trying to cover all the bases.  But then again the surprise is oh so worth it.........