Can (this == null): the answer, PLUS another Pop Quiz!

Pavel’s comment on my previous post was spot-on: this == null may evaluate to true if the == operator has been overloaded for the type in question.

I will give an example; but before I do, here’s another little teaser: can you come up with a program in which the following line compiles?

this = null;

Eh? Eh? What do you think?

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