Why does toast always fall butter-side down?

Question: Why does toast always fall butter-side down?

Examples of answers (by Donay)

- The butter side weighs more.
- Because of Murphy's law.
- Scientific thought holds that popular belief is moronic and that toast falls butter side down only half the time. (I liked this one!)
- Because ghosts think it's funny to mess with us and ruin our buttered toast.

Now it's your turn!