So the boss is out of the office for a meeting, so that means my co-worker is going to be on her cellphone nonstop.

My co-worker is very active in her church, which I have a lot of respect for. Not my thing, but she doesn't try to push her beliefs on anyone and she's a good person. Her daughter is having major car trouble. I just heard her tell someone over the phone that if her daughter had paid her tithing, she wouldn't be having this problem with her car.

No. Her daughter's car did not break down because her daughter didn't give money to the church. It's most ridiculous thing to me. I'm all for the idea of the power of focused intention/prayer, charity, and doing good works. But tithing will not prevent a head gasket from blowing.