As an employee classified as a journey level painter, and under the umbrella of one multiple trade union, I am constantly questioned about straying from anything strictly paint related. Even though my specific work group demands us to perform multiple disciplines for service requests.
It's not like we're stepping on any of the other trades toes, because none of the service requests involve tasks that are specific to any of the other trades. And if they are, we always give them rights of refusal before proceeding with contractors. Which they always seem to take the opportunity to refuse.
It's a real handicap in terms of maintaing any kind of momentum.