EXT. A FIELD - DAY
A man is stood pointing at something off screen.
MAN1
(Shouting)
Pylon!
A man charges past him towards where he was pointing, we hear a loud crack and then the man limps back past with smoke coming off him, hair stood on end, and a charred face. Man1 shakes his head as he watches him go past.
MAN1
Not again
Cut to reveal the men stood near an electricity pylon.
I don't think the last line is needed but it's a nice little sketch there 
I thought people would be confused without that last line but if it works anyway then I shall remove it.
Cheers
I doesn't work without some explanation of the pylon/pile-on mix up. Also, "Pile on" isn't a universal term (we scream "bundle" in our neck of the woods).
There's a good joke in there I reckon, you're just not hitting it right now.