Robert, the world is happy to see only a head & shoulders of you testing Glass in the shower. If any more was revealed many a fan would have been ruined for ever.
On to more important things, you really need to upgrade your shower and shower head. At least the shower head! I would go insane using a 70's style fountain to relax and soap up under. You really need something like this http://www.lifetimebath.com/media/catalog/product/cache/1/small_image/219x/9df78eab33525d08d6e5fb8d27136e95/s/m/small_4.jpg
I admit I don't have one yet, but it is on the horizon since the use of a spa and pool are required for my rehab. I am wondering id the Glass will stand up to the rigors of the relaxation system I've linked to?