and it sounds like your department chair has it in for you. There needs to be some way that this person doesn't get to evaluate you. I mean if that's the only evaluator that's bringing you down, than it obviously looks fishy. This is such a crock that you have to go through this unfair and flawed evaluation process. I myself have cut back on how I live so if something like this happens, I can say "see ya," and head for the hills. I have never felt very secure in the teaching profession even though I've been slinging the hash for almost 18 years now. It is such a stressful job and it only seems to get worse. My thoughts and prayers are with you as you battle on through this....it's so very wrong!
