A thought you have and are instantly horrified by. You reject it and label it as "mad".
Mad Thoughts:
Earlier today I was holding a pint glass in the pub, and I had a strong urge to break it in my hand just to see what would happen.

I was walking down the street and saw someone with long hair, and wanted to set it on fire wondering how quickly it would burn.
by AlyxUK October 3, 2009
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