As I was handing to vet assistant, dog started squirming so the girl reached down to hook under dogs butt to take her from me and
inadvertently brushed my cage.

It was pretty distinct brush, I could feel her hand run full length of cage. I only hesitated for a second before releasing dog to her watching the girls face, seeing no response and making none of my own but it was a shock for sure.
Never had anyone touch it besides my keyholder. I'm sure my heart rate jumped a little.
I was wearing work clothes so I'm hoping she just thought it was my key ring in my pocket she had felt, but it's not like she would stop
and go "Oh, I felt your cage" anyway but still made for an interesting visit. LOL
Mikel