Amazon Warehouse Associate interview questions

As most people point out, there's not really an interview for the warehouse positions. I was there for about an hour. I applied on amazon.force.com and immediately got an email confirming New Hire Event date and time.I entered the building, a guy at a makeshift desk asked if I was there for the hiring event, I said yes and was asked to have a seat. A few minutes later, everyone was told to line up. We took turns sitting across from him while he checked our IDs, and were given a sheet with our name and a bar code on them, and another sheet with your potential shift time/pay rate/etc. If you did not like the shift you got, you could not negotiate it, you had to withdraw your application instead. After everyone got their two papers and were seated, a woman came out to talk to us and give a PowerPoint presentation on the job. She explained all the basics, stressed to us that it was a very physically demanding job and that they are very safety focused. Watched a very short video that talked about a couple different positions (the video was pretty pointless and not helpful, honestly.) Next, we were led to another room that had two long folding tables with oral drug test kits laid out on them. The guy doing the drug test was VERY impatient and rude, and he is only reason I'm not giving a better overall experience review. He made me feel very anxious. You stand there with the swab in your mouth while filling out the drug test paperwork. Finally, we lined up in that same room for badge photos. You sit there, give them the paper with the bar code (they will keep that, you will keep the one with the shift times/etc), get your picture taken, and you're done. Next step is waiting for an email to tell you if you passed the drug and background checks.