Photoshop Challenge with someone who hard core believes in Nephilim (Giant Bible Humans)

So I see this guy today at work watching a youtube video of "Nephilim" (Bible giants...) people obviously photo shopped (or the 1970's equivalent..) so I told him it's all fake and he got really "I fucking believe it" pissed...and I started laughing. It's so obviously fake...So I told him I could photoshop him with a giant skeleton...So here is the pic of him (Blurred face :) )

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For other uses, see Nephilim (disambiguation).

The Fall of the Rebel Angels by Hieronymus Bosch is based on Genesis 6:1–4
The Nephilim (pron.: /ˈnɛfɨˌlɪm/) were the offspring of the "sons of God" and the "daughters of men" according to Genesis 6:4; and giants who inhabited Canaan according to Numbers 13:33. A similar biblical Hebrew word with different vowel-sounds is used in Ezekiel 32:27 to refer to dead Philistine warriors.
Anyone want to help me with a kick as photoshop so I don't have to do this when I get home?I took his pic against a wall that would be easy to mask. Granted he has almost ZERO computer/tech skills and when i was debunking online pics because of shadows and poor blending/blurring he had no idea what I was talking about...

Holy shit i didn't even notice that....where would you even find ammo for that? we need to get those guns off the streets now!
I'm usually into this whole genre of fakiness, Bigfoot/Lochness Monster, etc, but this is the first I'm hearing about these Giant-People.
I've got a lot of YT watching to do