Question

Pain is commonly measured and described by using the visual analogue scales (vas), although this provides a useful method of describing pain experience, it does not assess the multidimensional nature of this complex stimulus. More sophisticated techniques for this measurement include analysis of the sensory, affective and cognitive components of pain, as described in a number of scientific studies

Answer 1

The camel's nose is a metaphor for a situation where the permitting of a small, seemingly innocuous act will open the door for larger, clearly undesirable actions.