There's a young Major here who was talking about her fitness program that she does.  In it, some days are really easy and some days are really hard. 

One of the workouts she described had her doing over 100 pull-ups.   Since she doesn't look like she's overly strong, I asked her if they were unassisted. 

At first, she said yes, but then she admitted that she used these bands to help with the pull-ups.  She also admitted that she really doesn't like them because they tangle up easily.

An image popped into my head that I couldn't get rid of, so I had to get it down on "paper". 

Here goes: