"If you remember this ONE simple rule, you'll never have an ND with a Glock: Like a revolver, a loaded Glock WILL fire when the trigger goes to the rear, regardless of what pushes it."
Another reason for owning a revolver is you don't have to police your brass off the ground. Full Moon Clips and Half Moon Clips can be confusing though.
They are only confusing to the poor soul who hasn't had the chance to work with them.
My S&W 625 is probably my favorite revolver, the easiest way I've found to explain moonclips, is to tell the story of how they came to exist during WWI.
Don't most wheel guns have to have the cylinders machined to accept those clips?