one word~pastime

it's my pastime, she said to the man who watched her. experiments and all that stuff. i like to prove things right or wrong, no matter how long it takes. now, if you don't mind, i need to get back to my project... it's my hardest one, yet.

he stepped back, away from the gray haired woman, away from the train tracks, away from the line of coins she'd carefully placed on the rails.

and, like her, waited to see if they really could derail a speeding train.