Crazy Construction and Neanderthols

I was on a constuction crew and I remember finishing something and someone said "Look at Yourself". I looked down and my pants were covered with black oil.
That was weird as we were working with electricity on the transmission poles.

Suddenly i was in another dream state where I was in a cave with cave men. They were Neanderthals and couldn't speak english. All they did was gesture and make funny grunts.
Then somehow, a small black box was given to them by a winged creature and suddenly they could speak english as long as they talked to the box.

I woke up after that.