All of them can. It's obviously even easier with payment but that's like complaining that stealing candy from a toddler is easier than stealing candy from a minor.
Good, but not great. I feel you realize this with your 5/5 and comment for a prize thing I saw come up in the chat box a while ago, but that is the wrong way to improve your rating. With a bit of elbow grease, this could be a great game. 4/5.
@zombie
Clearly, the gasoline is being dropped first, then the money in hopes of creating a spark. They should probably use coins, not paper money though.
All of them can. It's obviously even easier with payment but that's like complaining that stealing candy from a toddler is easier than stealing candy from a minor.