He's probably upset he won't get to make a Senate speech about gun rights for gay marsupials...

The Australian notes:

“I hope Bob Hawke doesn’t die soon, otherwise we’ll never get any work done,” Liberal Democrat David Leyonhjelm told reporters in Canberra on Monday...

Senator Leyonhjelm said he had no fond words to say about Mr Fraser, other than he defeated Gough Whitlam in 1975.

“My mum said if you can’t say anything good about someone don’t say anything at all. So I’ll be totally silent today."