[MortMan]

This should be valid grounds for firing a union member, if documented and counseled against.

Workplace safety is no joke.

[glennaro]

This is an actual question on an exam I took at grad school:

Q: Which of the following do most union leaders consider to be their primary responsibility above all others?

A. Union member wages
B. Union member health and safety
C. Union member benefits
D. Preservation of the union

This university was often criticized for its "conservative business school curriculum" in a "union town" ... so you can no doubt come up with what the professor considered to be the correct answer.