An example of severe pain is long-term trauma damage that is debilitating, like if one were in an auto accident. Or the severe pain that goes along with deep nerve agitation, like compressed discs in the spine. "Severe" pain is the result of a medical condition, not just a subjective matter.

Personally, I've seen what cannabis can do for people who have legitimate needs. Perhaps before the typical stoner decides to scheme or commit fraud to get a card, they should consider those who actually need this service for pain relief, not just to slam down beers and get high.