You'll get redirected to the user page @Index if you put nothing after the "/users/" in the url (this user's name has a lot of wonders yes)
While you'll reach an error page if you put empty after the "/show/" in the url (you can get the error page in many ways anyway)
Also, no matter how many "/show/" you'll put after the "/show/" in the url, you'll be redirected to the same @show user page no matter what. (made me realize you have to have double "show" in the url in order to reach their page even)
What about "/users/" after "/users/"? Aye, redirecting to Index of course! Told you the user's name has a lot of wonders.