jwolthuis - 4:03 am on Jun 6, 2012 (gmt 0)
He's giving it to the bozos, too. More than likely, they didn't get paid, because the installed widget didn't work.
Ask to speak to one of the bozos to confirm installation specs... privately. Only then will you get the rest of the story. Your customer is likely putting the screws to both you and them.
His position is somewhat understandable. He bought your widget, paid the bozos for turnkey installation, everything went haywire, and he's left holding the bag. He's gonna be upset, but to blame you for brittle wires is a stretch.