What are the disadvantages of using inheritance as a way of reusing code?

Question

What are the disadvantages of using inheritance as a way of reusing code?

Answer 1

IIRC, the Liskov Substitution Principle ¹⁾ postulates that one should be able to substitute a class by any of its derived classes; that is, derived classes should not behave radically different than, or violate the contract set up by their base classes.

Obviously then, this principle puts an intentional limit on how a (base) class can be "re-used" by another class (which is derived from it). Other means of using a class, such as aggregation or composition, aren't thus limited by the principle.

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^{1) See e.g. The Liskov Substitution Principle (links to a PDF document).}