"What!?...What did you say?"
Rishi Durvasa stopped midway, all his anger put on hold as he was so much taken back by the words of Karna, Conditions? Conditions for what? Being a student?
He for a moment forgot who is getting benefits here, Be the great Sage who even gids revered, The one who has pretty much all Divya Astras (celestial weapons) knowledge, And even if there is someone he didn't know, He can anytime go and take them.
Or the little Suta (Charioteer) kid who has a charm beyond simple words can ever describe, There is also a hint of the blessing of Chaos on him but Durvasa did not think Chaos can bless anyone, That is a pure force of destruction.
So Durvasa was not able to wrap his head around the fact that he wanted to choose this boy as his first student and not did he not just kneeled at his feet eagerly accepting his offer but even giving his own conditions.
'Interesting, Boy has a spine. Quite an extraordinary specimen indeed.'
