yeah, as someone who has worked various different jobs I can tell you I've met a fair share of not too bright people. just one example is when a guy and I were putting in a drywall drop ceiling and I reminded him multiple times to make sure to cut out the ceiling vent hole BEFORE hanging the ceiling up. welp long story short this dumbass forgot to do this very basic thing, and then had the audacity to ask me "Well, why didn't you remind me?" like motherforgeter I DID REMIND YOU, AT LEAST TWICE, IF NOT MORE! and since I'm only 5,7 and 140 pounds I'M the one who had to end up going into the attic crawlspace, finding the vent hole and stabbing markers down through so the idiot down below knew where to cut the circle out of the ceiling at.
I get where you are coming from. Sometimes you just have to work with these kinds of people, and no matter what you try to tell them they always think they know best, or when they forget up they try to shift the blame on you! And yeah, as bad as you want to say "I told you so" that almost always results in just more problems or making the person feel worse about their mistake than they already do, so it's better to bite your tongue and focus on the job at hand rather than rubbing it in or starting a feud. respect+ your holding it together brotha