Dominant Clown Twitching?

[bd_scott]

Hey, I know clowns communicate submission by rolling on their side and twitching, and my smaller, paler clown has done this for weeks, but yesterday I caught my larger dominant clown twitching in front of the smaller one. I was just interested if anyone had any ideas why? It's the one and only time i've seen it. Just earlier I caught the bigger one snip at the littler one and he twitched like normal. I attached a video:

 

[fishguy242]

hi welcome to the reef going to love it here!!
lots of fun/info/fun/help/fun...
looks to be normal clown behavior,kinda cool in fake nem

 

[Nigel35]

yep nothing to worry about normal clown behavior