Originally Posted by Watchman
Given the very limited and monomanical parameters zombies invariably operate by such a "crazy hobo" is going to attract police attention right fast, and given the behavioral patterns of the critters considerable police attention right soon after. Or at least around here the cops are prone to intervening if they get reports of some crazy attacking people at random or, God forbid, eating them. If the conditon is contagious enough to infect the living through, say, bites à la rabies (not an universal trait of the "zombification" process, it might be added - many variations of the theme only affect already dead bodies) it's not going to take all that long before this is going to get noticed, although this depends on the gestation period.
Serious wounds inflicted by the "crazy hobo" would be taken to medical professionals anyway. Heck, if there's reason to believe the source of even minor injuries carried some kind of weird disease (in this case likely initially mistaken for some sort of rabies) I'm under the impression the normal procedure is to see a doctor anyway. So much for "bleed out and die", and human teeth are really poor weapons for killing or even seriously wounding animals - nevermind now human-sized ones that actively struggle - to begin with; the zombies' ubiquitous serious lack of any and all technique, sophistication and tactic in their use doesn't help at all.
And it's not like it'd actually take the authorities that long to play connect-the-dots with the victims of previous assaults turning into new slavering cannibal idiots either, in the case the condition is of the fluid-transmissable variant. Doubly so as it'll sooner or later happen under direct medical supervision, and after that the least they're going to do is quarantining all the victims under armed guard and likely issuing a public statement of the phenomenom so people have an idea of what to avoid and what they should immediately report to the authorities.