I'm constantly frustrated that as an engineer, who's not supposed to deal with commercial issues, I spend about 10% of my time with purchasing issues
I guess it comes back to the old saying that you can make engineer into an accountant but not the other way around.
Thankfully most of us are issued credit cards for the little stuff.
A couple weeks ago I needed to get some grinding done by an outside shop. Purchasing thinks all vendors are the same and that we all ready have too many grind shop vendors at three. So when those three can't do the grinding, I pay one of those three a 15% markup to cut a PO to the fourth shop