Ok, thanks for explaining.It's a russian roulette without an enema. Better safe than sorry.
In my experience is is no russian roulette, but very safe. Even in the events af an "accident", it was no messy stuff like in the scat videos. Nothing a single handkerchief-wipe couldn't fix.
If you are scat-phobic, yeah, you better be safe than sorry. But if you don't care that much, you will be missing a lot of good possibilities if you insist on an enema.
But back to the topic: I think we all could call anal without prior enema to be clean enough and ignor the minimal possibility.
The fetish enema instead would have suggested that we would actively want to see her doing it, maybe even a dirty enema (wich is likely the case or else it would prevent nothing).