No one wants to get arrested before he reaches his goal. The four men's average looks belie their covert activity. They aren't irresponsible kids.
None has a death wish.
They are all very in tune with their gear and take great pains to ensure that all possible safety precautions are observed, considering the hazards involved. In life, there is risk, and there is the perception of risk. Perceived risk is riding a roller coaster. In an earlier reconnaissance, he and his cohorts decided scaling a ladder 100 stories high would be too tiring. So they decided to stop at the first catwalk, which they eyeballed as around 350 feet up.