system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do they blindfold people before they execute them?
gpt
This was more common in electric chair executions. 

To not go into scientific details; the person who is being executed, their eyes basically "pop out" and bleed and what not.

In other types of execution like shooting and hanging, it eliminates the human element from the equation. It is easier to execute someone if they are not making eye contact with you, or making eye contact with cameras.