Ignoring the fact that there are no doubt countless threads dated in the past with just this Idea, here goes.
What force and strenth cannot get through, I with a gentle touch can do.
Many in the street would stand, were I not a friend at hand.
What Am I?
LoL!
Nope, though I suppose it fits the bill in a sick and twisted way. 
Hookers?
Wait…pimps! Pimps. Final answer.
I love it when they talk that way!
I preferred everyone else’s answers but I think you’re a key.
What word in the English language, when written, can be turned upside-down to result in an abbreviation of the antonym of the original word?
Up…
dn… down opposite of up.
good one, took me awhile.
Try this one.
There is a common English word that is eight letters long. Each time you remove a letter from it, it still remains a common English word – from seven letters right on down to a single letter. What is the original word, and what are the words that it becomes after removing a letter at a time? (no rearranging)