Signs your workplace may not be as professional as they claim to be

First sign: having to explain in small words what "significant digits" are, and why where the decimal point is doesn't matter when dealing with them. The targets of this explanation all have degrees in either computer science or an engineering discipline.

Meanwhile, over in alt.sysadmin.recovery, people with no degrees at all are having intelligent arguments over the differences between the various alephs and whether particular ones are ordinal or cardinal numbers.