A hydrogren atom and a neutron are hanging out at a bar. The Hydrogen atom says *""Hey, I think I've been ionised, I can't find my electron!""* The Neutron asks *""Really? Are you sure?""* Hydrogen replies *""Yes; I'm positive.""* ----- After consoling Hydrogen for a while, Neutron says *""Bartender, we need a round of drinks. My friend is having a rough day.""* The bartender delivers the drinks, and Neutron gets out its wallet and asks *""How much for these?""* The bartender holds up his hand and shakes his head, *""For you? No charge.""*