Farley Mowat. He's a Scottish-Canadian author of some note. Has had a few big-selling books over the years, some mainly humorous and some devoted to ecological causes. He seems to delight in offending high society. At some posh dinner party in Ottawa (our nation's capital) he became annoyed (I assume) by a lady who was going on and on about something. He reached under his kilt, pulled down his jockey shorts, wadded them up, and threw them in her face.

I have no idea whether or not this incident helped him sell more books. ;-)

He was once refused entry into the USA, because of his reputation as a "subversive radical".