Pah, he's probably underchallenged, granted, but I don't deny him enthusiasm. You're allowed to be OTT at a live gig, dozens of guitar heroes build a career on that with no one complaining, now a bassist does it and everybody is up in arms, my dear staunchly conservative - "as a bassist you are not supposed to do this and that" 
- brethren!!! If Keith Moon does the same thing on drums, everyone here is in ecstasy about his perceived brilliance.
1. Keith Moon was awesome, never awkward and cringe-inducing to watch. As a lawyer I do not expect you to understand the concept of shame, much less so empathetic shame.
2. I gave an example above of how a frontman I played a gig with was similarly horrible to watch, so there goes your conservative bassist theory. Its not OK for any band member to act this way. I mean this not in a dogmatic legalistic way, but rather that if you do this (or similar), you will be mocked, and you deserve it.
But yes, if you tollerate this, your children will be next.... or to put that idea in the words of a cheesy North American anti-drug PSA from the era of my youth turned popular internet meme: "You alright [Dad]; I learnt it from watching you!"
