 notify customer when their workloads are being scheduled on master/infra nodes

CU workloads  routinely manage to find their way onto infras and masters...
We just send SLs in this case and based on impact move to limited support...
This negatively affects SRE ability to manage such clusters and in the end results in bad experience for the customer...

Can we please have a rule that would notify customer when their workloads are being scheduled on master/infra nodes?
