it's not online only either, I had university classes with a guy whose family name sounds like a swear word, and since to attend exams you had to preregister on a big dead-tree book left alone, usually teachers assumed it was a joke and didn't account for him.

At my fathers server farm, they had a scottish colleague called "Ronald McDonald". That regularly led to hotlines hanging up when he tried to order replacement parts...

"I'm terribly sorry Mr. Fukker that we didn't put you on the official list, this oversight will never happen again" "Ohh, and how often it happens.

A friend of mine has the wonderful surname of "Null," which caused some fun at the telephone company billing department back in the 80's.

One of the counselors at my high school had the surname 'Coon'.

As a result, the father of one of her students was unable to receive emails from her at his work address, due to their filters.

I'm not really sure how (or if) they solved that problem.