After an assignment

A man comes home after an assignment of 3-years and he finds, there is an additional member of the family, a 29 months toddler.

Furious he demands an explanation: He says, how could you have done this to me!Did you cheat on me with one of my friends,was it Josh, was it Nathan, or was it John?

His wife with a daring look says, your friends! Your friends! Don’t you think I have my own friends too?