i guess like all things...be respectfull of others preferences and walk away.
There were many things that repulsed me a few years back, and now some of them are my biggest turn ons! In regards to "Toilet slavery"......umm......not my thing, but if a Domina were to command it i guess the situation would dictate the response.
A lot of us do things that break the "safe / sane" barrier as seen by vanilla members of the community. It would be sad to see us judging others within our own community.