For me it's about a professional being able to find an appropriate middle ground. I agree you need to switch off, and also that a club needs players like that - I bet someone like Tariq would be fantastic to have around in Grand Final week, for example (no that we'd be there).
However, I do think there's a time and place, and a guy who has been around a few years should be aware that it just doesn't look good to behave that way on the field after 7 losses out of 8. I mean he's actually won 1 game with the Knights, right? A bit of perspective is called for on his behalf.
Sure, during the week be upbeat and playful, keep training fresh and don't let losing become soul destroying. But you have literally just lost another match that cripples any hope of semi final football, I think you could be a larrikin with a positive disposition AND display 5 minutes of disappointment as well. It wouldn't be compromising your character to just act like it hurts immediately following a loss.
It's the same in any industry. You play a role to a certain extent when professionalism is called for. You complain to your friends / partner / family privately about your true feelings toward the job, but you also do your bit in meetings etc. I just think Tariq (like his brother) could be a bit smarter about these things, even though in all likelihood if I was in the team the Sims brothers would be some of my best mates because they actually have personalities.
