Oh god no! i'd hate that, and i'd be SO crap at it. It's an interesting question though, because i wouldn't say i was submissive at all in much of my life...but actually dominating someone in an 'official' capacity, lord, no. If i did, i could consider it with someone i hadn't already subbed to...but not with my own dominant, it would either create friction or turn into a silly joke (likely the latter!). i could probably do it with someone i didn't know..but i wouldn't enjoy it.
Having said all that, i do think it's quite a turn on when a dominant does something particularly tender at the end of a scene or something..*tries to think of an example*....like, kneeling down and giving you head or something....i know that's nothing to do with the subject techically, i just mean that humility occasionally raises it's head (so to speak) in the oddest, but nicest of ways in Ds. In addition, humility would be the only thing i'd have any interest in 'testing' (as you put it in the opening post)...but i'm not sure i'd need to anyway, if that makes any sense.
Good question nibbles.
sl