RFE - yum updates should be disabled unless hypervisor is in maintenance mode (feeler)

Just wondering how the group feels about the following:

yum update should fail and provide a warning indicating that the system should be put in maintenance mode before applying any updates.

yum-plugin for RHEV perhaps?

I wanted to get others opinion prior to creating an RFE and wasting their time (if nobody thinks this is a good idea).

I would like to see this in KVM, in general, but I accept that people are taking their lives into their own hands with KVM.