Well, Douglas Scott Delaney’s here to tell you all about the actual deadliest job in the country, and the saddest part is, these workers die regularly for the oh-so-noble cause of better cell service.

In Tower Dogs, Delaney recounts his career climbing impossibly tall towers to fix parts, install upgrades, and narrowly escape death. It’s a workplace of rough and tumble characters, men and women who live on-the-edge, quite literally.