Slaughterhouses have no glass walls
because there are things that you are not supposed to see!
The myth of "humane slaughter"
The process of slaughter entails taking an animal's life, most commonly by the slitting of the individual's throat while forcibly held in an upside down position in order to facilitate the draining of the blood prior to skinning and dismemberment.
According to the American Heritage Dictionary, the definition of "Humane" includes such words as compassionate and merciful.
To have one's throat involuntarily slit may be many things, but few on the receiving end of such an act would be likely to call it merciful, or compassionate. Hence, humane slaughter is an oxymoron.
"Animals do not 'give' their life to us, as the sugar-coated lie would have it.
They struggle and fight to the last breath, just as we would do
if we were in their place.”
~ John Robbins ~