He was using the gun as a lever; had the door proven obstinate, he would have blasted it open with bullets.
Naturally, if she proved obstinate, she could be eliminated.
The strings of her corset proved obstinate at first.
In the old days, Magicka would have simply ignored the command, carried out the execution, and done away with the courier if the man proved obstinate.
The others would soon be going, but he would assuredly prove obstinate.
The leaders of the two tribes prove obstinate.
He might prove obstinate unless he knew it was all right with you.
Already preparing her way back into his blankets if Rolan proved obstinate.
At the same time, it must come to that if you prove obstinate.
Then, if they prove obstinate I could resort to other means to win their obedience.