Usage: Keeping the number of digits consistent?

[Dori Green]

A graduate-level nursing student once brought her master's thesis to me
to be re-typed because her committee had tossed it back to her when they
measured the margins and found some of them to be 1" instead of the
required 1.25".  I think she actually sued the original typist. 

The thesis had something to do with relationship of intercourse
frequency to incidence of UTIs.  When I discovered a major error on her
original questionnaire -- repetition of "once per week" as two
categories instead of "once per week" and "once per month" -- she
quickly hushed me.  They had not caught this underlying error making all
of the survey answers invalid and she was not about to 'fess up.

Sure enough, they re-measured the margins and passed her thesis.  She
was right on the edge of a big nervous breakdown and I did not tattle on
her.

Dori Green