How many people does it take to shingle a roof? Three, but only if you slice them thin enough.
That's pretty gruesome. If it's supposed to be a joke, I don't see the humor.
I'm saying I wonder how many people it takes to put some shingles on a house.
Having harmful thoughts and words about people in general is not the normal way of thinking. People are just doing what they can with their lives, no one is better than anyone else. Do some volunteering or help people in charities, which will give you more of a good feeling than joking about harming others.