Even bananas are weapons. Dropping a ten ton weight may be okay in some circumstances.
So?
Lie, cheat and steal.
When the ‘law’ is no longer your friend—why give a sh#t about the law?
Have some crude, DENIABLE weapon (dagger, club, etc.), Use it, chuck it, say you took it from your assailant.
There is no future in being the “honest citizen” anymore—so why be one? Say you were “stunned”, that you “don’t remember” and then STFU!!