HR rep lectures candidate after he rejects their lowball offer, telling him he should have been "grateful for the opportunity": 'I have 4 years [of] experience and know my value'

People don't like rejection. It doesn't matter if it's personally or professionally. At some level, we're all wired with a need to be desired, and so "not being chosen" can really sting. Most people would take it on the chin, probably reevaluate and take the chance to onboard the experience and better themselves. Some people, though, are seemingly incapable of taking anything on board and lash out at those who have rejected them as if they are somehow the problem.

When it's an ex-lover or someone with whom you have a personal relationship, you might expect there to be a degree of hurt feelings and lashing out going on when you've firmly rejected them. We're not necessarily worried about professionalism in these cases, and when you've broken up with someone because they're emotionally immature, you expect them to be immature. But when it's a professional, nay, a Human Resources representative whose job literally is "professionalism the job," you might have higher expectations for their maturity and how they professionally conduct themselves. 

This candidate was surprised to find himself the audience of a lecture after he declined a lowball offer from an interviewer after a successful interview process. The HR rep told him that he should be "grateful for the opportunity," despite the fact that their offer did not at all line up with the experience that he was bringing to the role. She persisted from there, following up with him repeatedly to see if he had reconsidered, clearly