purely because since I was a kiddy first actually using the toilet I could never use any but my own for defecating (It's just a no, no) I learnt to hold having to go for a poo for up to a week (makes me feel ill to do it) but then I found a better way then giving myself jaundice and other nasties...I pretty much meditate (I can even do this walking and fully active / aware even conversing) and imagine the higher plane of existence to be the ocean this makes me wanna go pee a bit but if I cant get to my own toilet (or Kazi whatever you wanna call the loo) it's useful as I only have to stand and pee.