Time saved from walking could be used for practicing shooting or learning which could save his life. Also fitness exercises are significantly more efficient for effort vs time.
Klein should return to that store to buy more stuff and continue making vague comments/actions. "No, this suit won't be good to hide"."Oh these shoes are great. Perfect for smashing."
Looks like your reading comprehension is as low as MC's đ¤. All other parts of the system are 'greyed out' - locked. He only has access to the Pushup quest to increase his Dao body.
A bear also only needs to bite a human once. After that, it'll be put down.
While the dog didn't do it intentionally, it is now treated as a wild animal that almost killed the professor.