I have them in my home, but I don't understand how to use it.. I would think that the spray has got to ricochet off cheeks and get all over the place. If your gun and hand are well place, then the fecal matter will end up on your hand... and certainly on the gun but there is no way to wash the gun so if you are using one then it has to have others <deleted> on it...
There are Japanese toilets with the spray built into the toilet - and apparently it gives a nice massage as well w/o involving your hand.. that sounds much better..
For me, I do my business in the morning and then take a shower...