All da elecTrons were having parTY suddenly proTons aTTacked ThemA herO came & saved da eLecTrons.TheY asKed hero "who r u?"he said "Bond .....Covalent bond"
Man to Doctor: I want to live long, tell me any tricks for this
Doctor: Get married
Man: Then can I live long???
Doctor: No, this desire will no longer stay...