That got me to thinking about a wonderful story of how one of rock's legendary bands ensured that their shows were set up properly - and safely. Van Halen's contracts would spell out any and everything that had to occur before they would go on stage. Not surprisingly, since these contracts covered everything but the kitchen sink, it would be nearly impossible to make sure all the i's and lower-case j's were dotted. So they came up with a smart way to make sure everything was followed to a tee.
In their contracts, they buried a rider in that said that the band would be provided with a jar of M&M's with all the brown ones removed. The thinking was that if the contract were read thoroughly, the M&M's would be provided sans the brown ones. If that was done properly, so, likely, would everything else. So rather than checking to see if everything was taken care of, they simply looked for the jar of M&M's. If there were brown ones inside, they'd have everything checked top-to-bottom
When you think about it, that's a nearly costless way to check for quality control. So much for the dumb musician stereotype.