If there isn't any blood, your snake ought to be alright. Just keep an eye on the spot for a few days and make sure nothing changes.

When they are talking about not stunning the rodent, it's b/c of that kind of thing. When a rodent is stunned, then wakes up, it's going to be aggressive....it's just been beat over the head. When you feed stunned rodents you have to hope your snake kills it before it wakes up. If you are going to buy live rodents, but you don't want to feed live (which can be just as safe as any other method of feeding....many members here feed live. If you want, use the search feature and search live feeding, I'm sure there are several posts about it) go ahead and completely kill it. That's something else that can be found on this site, how to pre-kill your snakes food (sorry...I'd find the pages for you but I have to be at work soon)

Anyways, instead of rambling like I am, I'll just say that the safest methods of feeding are live (the snake is very good at killing it's own food) just make sure you supervise every step of the feeding, pre-killed (make sure it's all the way dead) or frozen/thawed (some snakes have a hard time switching over to frozen food, but it can almost always be done)

Since the bite doesn't seem to be bad from what you have said, I would take it as a sign to change your feeding methods.

*Edit* So I type really slow....you guys posted three different posts since I hit the 'quick reply' button!!