I used Stealth Rock with my Mold Breaker Excadrill yesterday, I was doing a legendary quest when a certain Magic Bounce one bounced my rocks back.
For those who know, this should not happen, Mold Breaker even allows rocks through Magic Bounce, I've done it in online play in the official games MANY times.
Edit: Also, if it happens to Rocks, maybe it would also happen if say, a Mold Breaker Haxorus used Taunt?