PARAPROSDOKIANS      are figures of speech in which the latter part of a sentence is unexpected.   Winston Churchill loved them...  

Some examples:

1.   Where there's a will, I want to be in it.

2.   Since light travels faster than sound, some people appear bright until you hear them speak.

3.   If I agreed with you, we'd both be wrong.

4.   War does not determine who is right - only who is left.

5    Knowledge is knowing a tomato is a fruit.  Wisdom is not putting it in a fruit salad.

6.   They begin the evening news with 'Good Evening,' then proceed to tell you why it isn't.

7.   To steal ideas from someone is plagiarism.  To steal from many is called research.

8.   In filling in an application, where it says, 'In case of emergency' - notify:  I put 'DOCTOR.'