i know that the snails creep slowly and their work efficency is low. and i guess there are two situation here:
1. some snails are happy everyday because they are satisfied with their efficiency
2.the others are unhappy because of their low efficiency.although they are unsatisfied with the current situation ,they can't do anything at all to face this.do you know why ?because it's their nature and it's impossible to change.
...it seems i digress from the subject?