When I worked in telecommunications, people would often ask me to moonlight for them.  And when I had finished my 2 hour of work for them, they would give $5.  WOW!!  $2.50 an hour.  I could make 10 times that amount working over time.  Yet, they felt that they were doing me a favor.  And they would never think of paying me more than $5.  And then, I was committed to maintaining their telephones for free for the rest of my life.  And they couldn’t understand why I didn’t moonlight more.