Rick and Michonne essentially murdered the Hitchhiker. Michonne's ugly cat was more important that that man's life. And do you believe you will ever see that crap cat again?
No one picks up hitchhikers now
. Who would do so after the apocalypse? It's not safe for the hitchhiker, either. Any other group might've stopped for him just to kill him for his meager supplies. At least Michonne and Rick left him alone
Agreed. They're not responsible for the life of every survivor they come across. And considering the coming war with the Governor, they were probably doing him a favor
by not bringing him into their group.
The fact he was screaming his head off like an idiot, and attracting every zombie for miles, probably didn't help either.