Yeah, I usually stress to employers and clients that I want to be cut off quickly, and usually remind them of what they need to lock me out of when I leave.

Even then, I've had clients for whom things have broken come to me in despair hoping I'd kept access. The day one of them for whatever reason decides to suspect that I was the one to break things, I will be very happy to be able to point to consistently having done what I can to ensure I get locked out.

I've had that, too! Fairly recently, an ex client who sold their business to someone with a full-time IT staff asked me if I had the password to unlock their NAS. No, I didn't. I turned all those over to the IT staff, strongly recommended that they change them, and deleted my local copies. Sorry, but no, I can't help you with that.