Ageism

• Shot Candy's dog because 'he ain't no good'
• the Boss will 'can [Candy] purty soon'
• After Candy gets canned he 'won't have no place to go' - shows that the elderly didn't get much support
• Slim 'wisht somebody'd shoot [him] if [he] got old and a cripple'
• slim says that Candy 'can have a pup if [he] want[s] to' - suggests elderly are easily replaceable