Preface To Disappear: Disappearing Act

You know how, when you're a kid, you're really dumb & you think things that happen on television & cartoons are real?  Do you remember the Looney Tunes or Merrie Melodies or whatever cartoons in which someone - my brain is telling me it's a cartoon mouse - but I found a picture where it's Tom the cat - puts on "vanishing cream" & disappears?

Do you remember those?  OH MY GOD I wanted so badly to find some vanishing cream in the bathroom!  (My mother didn't use that stuff, though.)

It turns out that vanishing creams, as the internet tells me, "get their name from the fact that they seemed to disappear when spread onto the skin."  Here's a link all about them.  I initially thought they made wrinkles or unwanted facial blemishes "vanish," but that's not it.  The cream vanished.  It disappeared into the skin.

It didn't make you disappear.  How disappointing was that when I found out!  Worse than the truth about Santa, the Tooth Fairy, or the Easter Bunny.

By the way - online thesauruses don't seem to think that "vanish" & "disappear" are synonyms.  Is it because disappearing appears to be instantaneous & vanishing takes time?  What do you think?