Two hydrogen atoms are walking down the street. One says to the other, "Hey, I think I just lost an electron."
"Are you sure?" asks the second.
Says the first, "I'm positive."
A neutron walks into a bar, takes a seat on one of the stools, and orders a drink. The bartender brings him the drink.
"What do I owe you?" asks the neutron.
Says the bartender, "For you there's no charge."
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