How much does the job pay? levitra effectiveness period In one of the show’s most surprising scenes, incapacitated elderly cartel member Hector manages to avenge his nephews’ deaths by killing drug baron Gustavo Fring. How? With his only means of communication, ringing a small bell. The bell is connected to a bomb which Walter secures to Hector’s wheelchair, and is triggered by the bell ringing. It’s deviously clever, but would it work?