LOL
nice!
I took a mixed martial Arts so.. I never used the grappling Gi.. nor did my opponent. I only grappled a few black belts with the gi and its not as easy to grab a hold of.. thats for sure. thick as hell and I can only imagine it full of water.
the worse thing I think I've ever done is during a Self defense testing... when pushed to my limits and knowing it was an all out defend yourself session.. I was held down by two men and my only out was a groin twist and grab.. which when warned my opponent gladly tapped out.. the other was biting.. I had no other attack planed that could work... he had me in full mount and was pinning me down like you just described... full weight on my face...
Before the test we were told to do what it took to get out... if it were something out of the norm then we had to warn our attacker and it was their call as to weither they wanted to submit or not...
Well I warned him that I was about to chomp down on him and .. no joke.. gnaw him till he got up... I don't think he believed me... Until I dug into him and drew blood.. I had by then had him tightly in my guard and my arms tightly around him using what he at first had as an advange against me.. now turned against him...
I felt pretty bad after and apoligized for taking a chunk out of him.. but then.. he knew before hand, and the whole time they were throwing me around the mat.. cursing me.. striping me down to the last bit of will I had to fight back.. they didn't flinch.
So hell.. he had coming to him what he deserved... that little prick... LOL