First right answer gets 10 points. Answer this riddle?

Question

Romeo and Juliet are found dead on the floor in a bedroom. When they were discovered, there were pieces of glass and some water on the floor. The only furniture in the room is a shelf and a bed. The house in is a remote location, away from everything except for the nearby railway track. What caused the death of Romeo and Juliet?

Answer 1

Romeo and Juliet are fish! The rumble from a train going by made their fish bowl fall off  the shelf

edit: d**n it, someone got it before me.

Answer 2

Natural gas and not the kind that comes from behind.

Answer 3

Juliet was drinking poisoness water, and when Romeo came home from the train he walked in and found her dead and slipped on the water and was killed by getting stabbed by glass. The End!

Answer 4

Romeo and Juliet are fish. the bowl was on the shelf, and the vibration from the train knocked their bowl off, and they died. The glass is from the bowl