Trying to debug why there's NaN% instead of 15% (project in JS).
Later realises isNaN(Val) literally checks for NaN datatype rather than Val is a number or not.
*shit*
Ctrl Shift F - isNaN in Atom (searches entire project), rethinks logic, refactors code
Looks around *no ones there*
Silently pushes the changes along with another major commit.