While I have a lot of problems with rabbit shows, the minor handling and palpation needed to detect a spay scar really isn't one of them. Any rabbit owner should be doing it on a regular basis to make sure they detect lumps, illness, and weight loss (in addition to weighing, obviously) anyway.
We are as gods to the beasts of the fields. We order the time o' their birth and the time o' their death. Between times, we ha' a duty. - Terry Pratchett.
"Men have forgotten this truth", said the fox, "But you must not forget it. You become responsible, forever, for what you have tamed. - Antoine de Saint-Exupéry