Does anybody else think, after watching last night's episode, that Hermit being there is just kind of ridiculous? He obviously had some mental problems (i.e. threatening to call the cops on Rick) and it's obvious he didn't know an apocalypse happened. 

How does a guy like that survive for 10 months? Yeah, he was locked in his house with the windows boarded up, but what about food, water, etc.? I just think it was kind of a silly thing to add. Thoughts?