Standing in a puddle of water and touching ANY electrical device that's running on 110v is just asking for trouble. Any faults, mistakes in wiring, etc can result in you getting a nasty shock. Move the game somewhere where there is no water. PS Don't even THINK about playing in bare feet!

Also, whoever rented you the machine is not going to be too happy if the legs are in a puddle and have not been dried thoroughly. At the very least, the levelers will rust and need to be replaced, and possibly the legs will rust as well. Additionally, if the room humidity is high enough from standing water, mold inside the machine may occur. The renter's brand new machine might end up a mess. You really need to mitigate the water or move the pin.