HAHHAHAHAHAHA - sorry
a proton and an electron are walking down the street and the electron says to the proton "I think I lost and charge" and the proton says "are you sure?" "I'm positive!"
AND
a proton, an electron and a neutron are eating in a restaurant. at the end of the meal the waiter brings the proton and the electron their bills. the neutron asks him "Where's my bill" and the waiter responds "For you, there's no charge"
AND
a proton, an electron and a neutron are eating in a restaurant. at the end of the meal the waiter brings the proton and the electron their bills. the neutron asks him "Where's my bill" and the waiter responds "For you, there's no charge"