Here are my thoughts on why the bobbin is so small - it talks to you:
"Now you have no excuse not to get up and stretch"
"You may now go to the bathroom, which you've been dying to do for the past hour"
"You know it's past time to start the dinner - I like to save marriages"
"Please take me out and put in a new one - it's awfully hot down here"
and finally -
"I just want to remind you who is in charge around here!"