Can't you count?

"Albert Einstein: probably the most famous amateur violinist. When he repeatedly made a mistake while playing with the pianist Artur Schnabel, the Austrian asked, "What's the matter with you, Einstein? Can't you count?"

Source: http://www.cssasuzuki.ca/suzuki.htm#Einstein

It is 3:04 a.m. and I just finished placing the 999th piece of my 1000-piece Van Gogh Cafe Terrace At Night puzzle.
And whaddayaknow. The 1000th piece is !@#$%^& missing.

What it looks like:

What it should look like:
(Images taken from wikipedia.org)