Honestly, if this is your quandry, you should look into a different hobby because it sounds like you are very adverse to getting bitten. If you keep a snake or snakes long enough, you are going to get bitten, or at least struck at.
And to be further honest, this issue gets debated, polled, and pondered around here on a regular basis. The long and the short of it is this. Newer owners tend to feed in a seperate tub because that seems logical to them. More experienced owners tend to feed in the enclosure. In addition, more experienced owners learn their animals, and learn that getting bit isn't the end of the world.