[quote=@DFTBA]
<Snipped quote by Melkor>

Air pressure cannot pull, not even a vacuum can do that. It only pushes from an area of higher pressure from an area of lower pressure. Lessening pressure around the hands wouldn't loosen the grip if there was no air in between.

A better way might be to apply a strong breeze directed at the points where Mishka's fingers contact Graham's neck to prise them off. It might not be as strong as those other methods, but it is probably safer.

Please understand that I'm not trying to attack you with this, just trying to find a way for our story to follow established rules and be internally consistent with what characters can and cannot do.
[/quote]

I've edited it.