So he'd use natural logs!
It doesn't matter how many you get, because all they'll do is sit around complaining about how misogynistic the use of the word "screw" is.
XP Edit: Explanation(http://en.wikipedia.org/wiki/ChiRho)
Natural logs.
Because its natural log is 1.
Student: H, I, J, K, L, M, N, O. Teacher: That's not what I taught you. Student: But you said the formula for water was...H to O.
Ed. U. Cation!