Acording to a study in Vis magazine.A papercut to the bellend is the most painful thing ever.
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Aenesis,
Wed 5 Mar 2008, 13:41,
archived)
I'd imagine plonking your balls on an orbital sander would be right up there though.
riverghost servicing your mum since,
Wed 5 Mar 2008, 13:44,
archived)