If you try to delete a patron and they have checkouts or fines, a page appears telling you so, deletemem.pl. The template for this page should style the message like other warning dialogs and the page should offer a link back to the patron record in question.
Created attachment 2447 [details] [review] Proposed fix for HEAD - Styling error message with "dialog alert" class - Adding sidebar patron details to match other patron pages I didn't add a link back to anywhere from the dialog because a deletion could have been initiated from any page with the patron toolbar. Adding the patron details in the sidebar should improve recognition on the part of the user that this is like any other patron information page and all patron-related links are available in the sidebar.
Patch pushed, please test
This bug is mentioned in: Fix for Bug 5029 - Update patron deletion error page http://lists.koha-community.org/pipermail/koha-patches/2010-November/012988.html