How to Protect XenServer Virtual Machine (VM) from Deletion

view story

http://serverfault.com – Is it possible to protect a XenServer 6 virtual machine from being deleted? Similar to the protection mode on a amazon ec2 instance. Just an extra step to prevent accidental deletion. Ideally I would like to allow only a specific user to have the delete privilege. I searched the manual and duckduckgo/google but didn't find anything. (HowTos)