dialogue: Alex: Listen to this: I got offered a part time job at the pub, but... they want me to do two full "training" shifts at the weekend. Unpaid. 
  Lu: What? I thought you already had a " training shift"?
  Alex: Yeah, this is after I already completed a 3 hour trial shift. Is it me of is it a bit weird?
  Lu: Don't do it. Free labour.
  Alex: That's what I thought tbh
  Lu: After the weekend they will tell you you didnt pass. So you've worked your ass off for 2 days for free
  Alex: Right??
  Lu: Sounds shady to me... but what do I know XD
  Alex: No, you're right, this is exactly what's going to happen.
  Lu: Too easy to take advantage of desperate students trying to find a job
  Alex: True. I found several threads on student forums discussing this exact issue
summary: Alex got offered a part time job at the pub, but he has to work for two unpaid shifts at the weekend as training. Alex has already worked 3 unpaid hours. Lu thinks Alex shouldn't agree to that. 