|A neutron walks into a bar. "I'd like
a beer" he says.
The bartender promptly serves up a beer.
"How much will that be?" asks the neutron.
"For you?" replies the bartender, "no
Two hydrogen atoms walk into a bar. One
says, 'I think I've lost an electron.' The other says 'Are you
sure?' The first says, 'Yes, I'm positive...'