I connected my PC up to a fully-functional electric chair and programmed HL to give me a 200 volt shock everytime I lose 10 units of health.
(iron ankle, wrist, and head constraints included once the game starts. They unlock once you beat the game and there is no exiting.)
And when my health reaches 0 or I die, I get a 400 volt shock and enter a stunned unconscious state for about 2 to 4 hours only to wake up again and try all over again til i beat it.
Like a real man.