Snake? Bloody snake??
I immediately think of rattlers and copperheads and run hell-for-leather up the hill towards him. I get to him panting, heart racing and ask where he saw the snake.
He says "No, it's a spider. With big spots"
I ask him where, he says "here" and opens up his empty palm for me to take a look. "Look mummy, a big spider!"
I suppose this means his imagination is kicking in. I should probably start taking aspirin.