Ergonomics Computer

Was it a Catholic who invented that ergonomic chair where you kneel and sit at the same time? http://www.safecomputingtips.com/blog/wp-content/uploads/2007/05/kneelsit-chair.jpg You guys are gonna have to vote over this one. I can see that I [wasn't] (O assume you guys still are) Catholic who cheat[ed] on the kneeling thing.

Wooden or Metal Ergonomic Kneeling Stool? I'm looking for a kneeling stool to use in my home office - I'll be using it 8.25 hours per day four days a week so not really 'light use'. I'm larger than average so want something sturdy that is not going to break! But the question is - is it better to buy a wooden kneeler or a metal one? One with manual adjustment or one with built in height adjustment (like a standard office chair)?

Which kneeling bench should I get? Which do you have or find better? 1 http://www.amazon.com/YogaChair-YogaChair-Affordable-High-Quality-Natural/dp/B001A3A1F0/ref=pd_ts_op_3?ie=UTF8&s=office-products 2 http://www.amazon.com/Wooden-Ergonomic-Kneeling-Posture-Office/dp/B000VNTJ1W/ref=cm_cr_pr_sims_t 3 http://www.amazon.com/Boss-Chair-Ergonomic-Kneeling-Stool/dp/B000VZQVKW/ref=cm_cr_pr_sims_t

Can I bring my own ergonomic kneeling stool to church? long story, i prayed for god to fix my vision and apparently he thought i was asking too much and it would be funny to destroy my knee cap in a hunting "accident"... Anyway, is it a sin to bring my own kneelin' chair or knee pads to mass? If catholics out there know a good brand of pads please.