So this is how my neighbor fixes his fence.

Yeah, Id be going back out there with a hammer and poking those nails back through the board just enough to make it flush. let the neighbor loose an eye if they want to half ass that.

"Screws? Where we are going, we don't need screws"

Has a nail gun but no table saw

yeah i'd go hammer them back in. safetyfirst

I read it as "they can't afford saw and screws"