I'm too intimidated to try one despite staying in hotels round the world that usually have them. What if it goes wrong? How bad much shitty water do I and the bathroom end up covered in? How do you know if it's clean? Doesn't other peoples shitty water end up on the same appliance that you're now using? Does that mean I end up with other peoples shitty water being jet streamed towards my anus? So many questions, so much doubt. Similarly for those handheld nosel things popular in the middle East and parts of Asia.