TS, IiF is right.
He could have sparred with Wim (the brown belt), Mattias (the blue belt) or me, but he never even asked one of us.
It would have been a great experience, since none of us guys are jerks and we keep the rank standard high at our club and the affliated clubs.
Now, to be honest I would have declined his offer, not because I'm a bad grappler but he was spazzing too much. There would have been a good chance that he would have hurt himself trying to 'break' free.
But Wim and Mattias could have performed a lockdown on him that would have unabled him to move one inch. (we had some Carlson BB train at our club and their mantra is "pressure, pressure and pressure").