You’d think engineering and relationships would be similar. 

There’s a task or a problem and you have to find a solution. Some problems are your fault, some aren’t, some are big, and some you just didn’t see coming. You could design the best system you possibly can and it could still fail. 

People are irrational. The limit does not exist. Does not compute. What’s the square root of -1? You’re dividing by 0? What?

…more wine please!