Only seen 1, customer "Did his own PM's" even had receipts from buying the filters, all three of the oil filters were behind the seat never used. It had the original filter from the factory still in it, but it came out in little pieces. Priceless!!!!
Had another one this week but it was a fuel filter, 6.0 with 89K miles on it with the original pieces of filter, he wondered why it ran like shit.