I've seen too many people get in trouble, not ask for their rep, and get fired. Then, they go to worse paying jobs to avoid the union, because they feel betrayed.
Please please please tell everyone that the minute you're called into your bosses' office, ask for your rep or steward.
I don't want to lose any more co-workers for dumb shit because they don't know their rights.
A comrade of mine at a union job got called into the boss’s office and they tried to coerce him into waiving his union representation, so he left the meeting and contacted his rep, who called the boss into a meeting and reprimanded the boss.
Never waive your representation
I always have my steward with me when I'm called into the manager's office
Excellent PSA!
Also in a lot of cases a union is bad because folks aren't involved! Your union might be a good one if you start organizing or going to meetings! Also a fantastic learning experience whether it's a good union or a mediocre or a shit one.