Custom PC worked in the lab, failed on site – and so did the angry client

No week at The Register is complete without a new installment of On Call, the reader-contributed column in which you share tales of the peaks and troughs of the tech support experience. So let's get going and meet this week's contributor, who we shall Regomize as "Gerald." He took us back to an early moment in his career, when he worked for an outfit that configured Windows 98 PCs as "data collectors" for its clients. As part of his job, Gerald built PCs and provided field support.