A group of organic molecules were having a party, when a group of robbers broke into the room and stole all of the guest’s joules. A tall, strong man, armed with a machine gun came into the room and killed the robbers one by one. The guests were very grateful to this man, and they wanted to know who he was.
He replied: My name is BOND, Covalent Bond.
LOL
Where chemicals collide
BANG GANG!!
Chemical Bang 
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