I'm a star
Don't get me wrong, its horrible what happen, but it's your responsibility to stay hydrated. If I need more water, I don't give a about what my sups say, I'm getting more water. Drive to any building and get some more water. Take a break if you feel like you're getting light headed. It's not worth dying for your job.
I am curious to know if his water bottle was empty.
It's the mind games UPS plays. If he just didn't bring enough water with him, which happens, he should have been confident that he could have broken off, gotten some more water, and taken a break and cooled off without fear of losing his job. Yes, I understand that I don't know all the details, and I am willing to hear any other theories on how something like this happens. But from my experience, seeing guys anxiously looking at the over/under report every day, working off the clock, working through their breaks, it's pretty clear how this can happen. The company doesn't do nearly enough to combat that mentality, encourages it even, and people get hurt and die as a result.