Try this
- Name who has access and the circumstances in which using it is welcome.
- Discuss practical changes through the proper account or lock controls if needed. Do not assume that an old key arrangement still matches current living circumstances.
A worked example
“Please contact me before using the spare key for a nonurgent visit.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Review the arrangement when circumstances change rather than relying on an old assumption.