Hey, chit happens and I would hate to pull out a sled because one plug crapped out and the guy didn't have proper tools to change it. Shadam is correct!
I agree that it isn't like it used to be, but plugs can fail and doo fail. It is good to be prepared and trail side or not plugs on the eTec can be successfully changed if one has the right tools. The old plug tools don't fit and it takes a little preparation to be ready in case of failure.