Warning: SPOILERS forThe AccountantandThe Accountant 2.

There are a number of reasons for this.

While she used to stim constantly, she now does it during moments of high sensory or emotional output.

Jon Bernthal as Brax looking confused while looking out of a window in The Accountant 2

Christian presents in much the same way.The Accountantexplains that his primary form of stimming is rocking back and forth.

ButChristian recites the Solomon Grundy rhyme in moments of acute distress when other forms of stimming fail him.

As a child, it eases his meltdowns.

Anna Kendrick in the The Accountant

As an adult, it prevents them.

There are slight variations on these lines in real life, but Chris repeats them verbatim every time.

Depending on how high the stakes become inThe Accountant 3, this repetition may occur once more.

Jason-Statham-Is-About-To-Have-A-Box-Office-Achievement-He-Hasn’t-Had-In-Over-20-Years-Thanks-To-His-$97-Million-Action-Movie

Ben Affleck taking cover and pointing a pistol in The Accountant

Ben Affleck sitting on the steps and speaking to Anna Kendrick in The Accountant

Image via Amazon MGM Studios

Jon Bernthal and Ben Affleck in formation carrying guns in military uniforms in The Accountant 2

Image via Amazon MGM Studios

The Accountant (2016) Movie Poster

Movies

The Accountant

The Accountant 2