My username has a slightly longer story:
When I was finishing University, I was looking for a research position at a university. I saw one that might suit me and I fired off an e-mail [yes, we had e-mail in those days] applying for the position. Of course, I was very careful to include my University address so they could reply to me. Anyway, it was kind of traditional for us at university to have a different 'wacky' e-mail alias every day and I happened to have 'King Wide of Pink Trouser Land' on the day I sent the e-mail.
I thought no more of this until, about a fortnight later, a letter turned up in my pigeon hole at uni addressed to
c/o Pink Trouser Land,
School of Physics,
I instantly realised that I'd forgotten to put my name on the email
and some enterprising soul had addressed it to the only addressee they had!
And the scariest thing? I spoke to the admin assistant at the physics department and asked her how she knew it was for me. She just looked at me and said "Well, who else would it be?".
And I've used it ever since.