This could be used to make a kinky version of that Nations of the world song from Animaniacs

My mother did this with coco pops for years and my sister didn’t realise until her twenties when she caught her in the act

So am I. We’ll have to beat them to death with their own shoes…

So it was Van Halen and you’re right, it was an easy way to be sure that venues actually read their contract which contained instructions to safely assemble their stage rig. But there was a parody of that story in Wayne’s World 2 https://www.youtube.com/watch?v=k_7kg5ZzDZo

Or when Ozzy wouldn’t go on stage without a brandy glass full of M&Ms?