Tolerance towards others is one thing, but patience towards others is another, being told complete rubbish about one thing used on a vac not being right because it'll destroy something (without proof I might add) when there are more people in the real world who actually know a thing or two about the parts (with spec. sheets and data on parts involved) that will apparently be damaged when the tolerances of the parts are not actually being exceeded is what is testing my patience...
Like the Hoover belts in a Sanitaire or Eureka thing recently, would you believe me when I say the same damned bearings are fitted to Royal metal uprights which have tighter flat belts that apply much more pressure onto the bearings without harm? Cos it's true, deny it all you want, but unless you have the proof to back up your claims, then don't get in a hissy fit flap with me using capital letters acting like a 7 year old kid, all over a flipping rubber belt, otherwise my patience leaves the building...