Addition on Smart and Dumb
Smart man + smart woman = romance.
Smart man + dumb woman = pregnancy.
Dumb man + smart woman = affair.
Dumb man + dumb woman = marriage.
Smart boss + smart employee = profit.
Smart boss + dumb employee = production.
Dumb boss + smart employee = promotion.
Dumb boss + dumb employee = overtime.
Smart man + dumb woman = pregnancy.
Dumb man + smart woman = affair.
Dumb man + dumb woman = marriage.
Smart boss + smart employee = profit.
Smart boss + dumb employee = production.
Dumb boss + smart employee = promotion.
Dumb boss + dumb employee = overtime.