- Familiar enough with product to set up customer demonstration on his own with minimal help from enigneering

- Shows initiative by exploring novel applications with customers

- Expertly alleviates doubts & hesitation in customers

:P

Honestly, apart from blatant disregard for safety culture, that is not a bad salesperson at all.

Without additional info, I would honestly put the blame mostly on the company, because instilling a certain respect for dangerous products should be part of company culture and employee training, you just can't expect fresh hires to come with all the common sense baked in...