How to refute the Scandinavian Gambit?

I hate this opening for White.  This opening annoys the heck out of me, if for no other reason than that Black clearly doesn't feel like learning (what i consider) a "real" opening, so instead, Black plays this crap.  This MUST be bad.  When I see this, I want to destroy Black as quickly as possible and make him feel so humiliated that he has no choice but to play a REAL opening against 1.e4 next time i play him.  So here's my question--what's the refutation of this opening?  or at least, what's the best way to play this?

I've heard that 3. Bb5+ annoys the heck out of black,but I don't know the follow up to it.  I'd appreciate responses to this from both black and white advocates.  what's the best white can do?  and if you play this as your main weapon against 1.e4, i hope you die a long slow painful death.