You have no idea what you're dealing with. Joanna has the urge to go after the truck. She's not spent enough time in Gauru to know what she could do there but tipping Turner's truck over sounded fun about now. Instead, once she's close enough she's going to break into a run to bowl Turner over. If the sight of a black wolf the size of a horse is not enough to make him turn and run she'll try and knock his legs out from under him. If she can get him on the ground she'll put most of her weight on his arm to keep him from using the gun. She'll not trying to hurt Turner but if she breaks him a little here she can live with that.
Spoiler: ooc
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So maybe Lunacy but he's crazy enough that he possibly doesn't care
Initiative if needed 5+2 Urshul +d10
[roll]7+1d10[/roll]
rolled 11 in the ooc
If needed
Defence 3 (goes up to 4 in Urshul)
Unarmed Combat to grapple
Str 2 + Brawl 1 + Urshul 2 - Turner's defence
(5d10)[2][8][3][8][10](31)
Any 10s
(5d10)[8][6][2][2][6](24)
If possible going to use Urshul to impose the Knock Down tilt but I may have to damage him first.