Liam McHowl was never much one for standards of etiquette and propriety. Since he was not beholden to any one country or the other, being a free spirit and nomad, he ignored all laws of decorum in equal measure. He knew his capabilities and what he could do to enforce his objectives and engage in self defense if he had to. What puny things were they going to threaten him with if he stepped too far over the line in boundaries? Death? He laughed and cared not for such silly antagonistic forces. So, when it came time to maintain his mind and body, he preferred to be comfortable. If that mean shocking the other patrons around him as he did was what necessary to maintain his physique, then fuck 'em. They'd have to deal with it. He'd be finished with his workout long before any authorities called would arrive - and even if they did, it'd be an interesting afternoon that'd just add to his workout.
