ChallengeWhy is this wrong?

time to read 1 min | 40 words

Can you figure out why this is a horribly wrong thing to do?

[ThreadStatic]
private static readonly MySingleton mySingleton = CreateSingleInstance();
A free license of Rhino Mocks will be raffled between the people who will correctly answer it.

More posts in "Challenge" series:

  1. (03 Jan 2020) Spot the bug in the stream–answer
  2. (15 Feb 2010) Where is the optimization?