(no subject)

I hate boolean arithmetic. I can't ever get the NOTs and ANDs and ORs to go where they belong to get the right result.

Note to self:

if a != b and c != d

is not the same as

!(a = b and c = d)

In other news, I have a face ache, of all things. It's been bothering me for nigh on a week now. Feels like I've been straining my jaw by grinding my teeth together, or opening really wide, but as far as I can tell I haven't done either of those things. Maybe it's related to my continuing cold/flu? Who knows.