It’s Halloween season, which means it is also time for your local news to roll out the annual scaremongering story about how there are large groups of insidious people just waiting out there to give your trick-or-treating children free marijuana edibles. This is one of those marijuana myths that simply keeps coming back from the dead with a vengeance every time the Jack-O-Lanterns start popping up on your neighbors’ doorsteps. No one is giving out…