Ahh! Help with brownies!?

So I just put brownies in the oven-duncan hines, I know, I'm no chef haha ;)-anyways, I don't know if I should eat them.. I began mixing the bowl, and realized I forgot to put in an egg, so I added it in, and I didn't know if that would be bad or not. THENNN, after I finished mixing it, I realized I forgot the oil, so I remixed it. I don't know if I've like "tainted" the brownie mix or not. Help me! hahah Thanks! :)