We had an apprentice who wanted to get the cotton-covered cord on his wife's iron replaced; so he asked our workshop storeman if he could have a few metres of the cord.The storeman looked at the old frayed cord he'd brought in, and asked, "Is your wife right- or left-handed?" the apprentice replied, "She's right-handed." The storeman told him that the cotton covering the kid had brought in was woven for left-handers, as they twisted the cord in the opposite direction to a leftie while ironing, and that had strained and broke the 'left-handed' strands.
He sent the kid to the nearest supplier ('A') to get a roll of the 'right-handed cord', as all our store had was some left-handed cord from a previous job, and did a quick phone call to the desk guy at the supplier, with, of course, a request to forward the kid to someone else (supplier 'B'). The apprentice made it to supplier 'E' before he actually got ahead of the phone calls, and was politely informed that, not only was someone 'pulling his leg' and any other appendage they could reach, but that the fraying was caused by dragging the cord over the edge of the ironing board.