I think performing a quick mental cost/benefit analysis of an activity and deciding not to do it, or do it differently, (Type I Lazy) shouldn't be confused with avoiding work (type II Lazy). Even if it ends up with the same result, in my opinion, there is a fundamental difference in the motivation and reasoning, "this is not efficient/of benefit" vs "I don't feel like doing this". Same result sometimes, but eventually the type II Lazy will show with cut corners and mistakes. (Equally bad is the type 1 with bad judgement I guess).