Well, time to put in my two cents...
In way, both UB and GP are right.
UB's anger is somewhat justified because I too experienced similar events which question my integrity and hope in people. This is common among people who either want to do good or are just living their lives.
Not to mention that UB works at retail. In my honest opinion, retail employees are some of the most ignored and disrespected people in the world. People are so caught up in their materialism that they forget that the person helping them with their purchase are human beings as well and that they are putting up with them because they have bills to pay and families to feed. In way, I can see why UB would be so angry, especially since it involves the death of a fellow employee.
But GP is right, too. Its very easy to hate, its very easy to be angry at people. Its hard, however, to maintain a positive attitude and just moving on. If we let our negativity take over then we aren't really making a difference or making the world better. In fact, you are contributing to the other thing that made you angry in the first place! Hate creates even more hate, and it leads to destruction.
So to sum it up...
Don't be hard on UB. He is just venting frustration typically seen in his line of work.
Don't be hard on GP. She is just trying to comfort everyone with the belief that despite bad events and people there's still something to look forward to.
In hopes of not sounding sarcastic, I want to wish EVERYONE a happy and safe holidays, whether you hate people or not

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