Hamilton thrashed sorry Dunfermline on their own patch to stay top of the division by four points.
It took just four minutes for Accies to open the scoring through midfielder James McArthur.
Teenager James McCarthy got the second on 18 minutes, before Richard Offiong got his ninth goal of the season after half an hour.
After the break David Winters notched a brace within eight minutes of the re-start to complete the rout.
Dunfermline: Gallacher, Woods, Bamba, Wilson, Muirhead, McManus, Phinn, Crawford (Ryan 81), Glass, Hamilton, Burchill. Subs Not Used: Murdoch, Young, Owen Morrison, Harris.
Hamilton: Halliwell, Parratt, Easton, McCarthy (Stevenson 67), Elebert (Swailes 62), McLaughlin, Winters, McArthur, Offiong (Wake 62), Neil, Gilhaney. Subs Not Used: Cerny, McLeod.
Goals: McArthur 4, McCarthy 18, Offiong 30, Winters 46, 53.
Ref: S Conroy