Trial By Trolley

Heavy unmanaged trolley rushes on the rails. On its way there are five people tied to the rails. Fortunately, you can switch the arrow - and then the trolley will go on another, siding. Unfortunately, on the siding is your dog, also tied to the rails. What are your actions? Will you be able to pass this trial?
This is a game about really hard ethical choices, who to murder with a trolley and who not to murder.
This trial by trolley is an extension of the classic trolley problem.