White Christmas, kind of...

This is how my workshop looks the day after Christmas:

With temperatures in the lower twenties, work on the wings is almost frozen in its tracks

Is it rational to work in these conditions?

No, it is not, this is why I have an irrational clock in my workshop, a Christmas gift from my dear wife Michèle (may be a subtle message too?):

It gives the irrational time spent on irrational activities.
Note that the numbers are at the right place on the dial. For example log 9876 = 3.995 which translates: 3 hours 59 minutes and 42 seconds.
For more on irrational numbers: http://en.wikipedia.org/wiki/Irrational_number