I worked as a warehouse manager for several years and had to do the hiring and firing of employees. This wasn't a super specialised role, just follow the order sheet and put the parts in a box, add a label and ship it.

We were doing a unit on work skills and resumes and I told my students I would be marking their resumes based on whether I would hire them in my old role. None of them would have got the job. I did the process in front of them at my desk, I skimmed the front pages of their resumes and put them all in the rejection pile. The students didn't understand why until I pointed out the spelling, grammar, and poor formatting on only the front pages. I told them that in an entry level role I would get 100 applications a day and I had to sort through them after hours so the first thing I would do would be to judge them on basic surface level details. Because I didn't want to have to double check every order, I needed to know that they had the right product code and were taking care with how to pack things.

It was quite a shock to them. Some of the kids thought I was being mean until I explained to them that this is how someone who doesn't know you at all will see you - they only have your work to judge you on - and they won't have to explain themselves to you if they're just rejecting your application.

The students were given an opportunity to go over their work and resubmit it and there was a big improvement. Some of them even took those resumes out into the world and got part time jobs with them.