While in internship, slap your employer with “Oh hi, by the way, THIS is my union” and if the response is anything other than “Okay, cool! I’ll check their collective bargaining agreement for our next meeting” maybe start looking for next post, just saying.
If you are in internship or whatever, and your employer has not asked anything about union details or whatever until last week, yeah, you might as well start preparing for disappointment.
If you want European pro tips: