You call someone a horrible person.
A synonym for horrible is "bad."
"Bad" can be seen as "not great."
"Not great" can be seen as "okay."
"Okay" can be seen as "good."
Therefore, calling a person horrible is the same as calling the person good. And vice versa.
Another example? Okay.
You can't spell "manslaughter" without "laughter."
"Laughter" is the best medicine.
Therefore, "manslaughter" is the best medicine.
And one more note... elevator doors can attack you. Believe me, this happened today... to me...
How can we dance when our Earth is turning?
How do we sleep while our beds are burning?