In my opinion it is a fake thing but not bad.

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A post shared by Headshave (@headshave4) on Aug 1, 2018 at 7:48am PDT

These are not fake (do not watch them if you are psychologically sensitive):

https://www.liveleak.com/view?t=1dc_1502470641

https://www.liveleak.com/view?t=2ca_1452400386

It is a shocking video so do not watch it if you are sensitive.
I was afraid that the wife would accidentally cut off the victim’s finger but that was not happened luckily. But the wife looks really really angry.