So I have a vampire who's squeamish about blood and only drinks type AB, so he goes after hospital/blood bank bags to store. I imagine he would have some sort of system in place, but I need to know about countermeasures. What systems to hospitals have in place to stop blood thieves? Is it behind lock and key? Is there a person he would need to get past? Are there cameras? Do they check inventory and if some are missing, do they consult video recordings? Someone school me on how this guy would steal blood. Thanks.